Update vendored library golang.org/x/net

This commit is contained in:
Alexander Neumann 2018-03-30 12:45:07 +02:00
parent 3473d73d0c
commit d4bab5c133
52 changed files with 12890 additions and 11527 deletions

2
Gopkg.lock generated
View File

@ -185,7 +185,7 @@
branch = "master"
name = "golang.org/x/net"
packages = ["context","context/ctxhttp","idna","lex/httplex"]
revision = "5ccada7d0a7ba9aeb5d3aca8d3501b4c2a509fec"
revision = "6078986fec03a1dcc236c34816c71b0e05018fda"
[[projects]]
branch = "master"

View File

@ -4,16 +4,15 @@ Go is an open source project.
It is the work of hundreds of contributors. We appreciate your help!
## Filing issues
When [filing an issue](https://golang.org/issue/new), make sure to answer these five questions:
1. What version of Go are you using (`go version`)?
2. What operating system and processor architecture are you using?
3. What did you do?
4. What did you expect to see?
5. What did you see instead?
1. What version of Go are you using (`go version`)?
2. What operating system and processor architecture are you using?
3. What did you do?
4. What did you expect to see?
5. What did you see instead?
General questions should go to the [golang-nuts mailing list](https://groups.google.com/group/golang-nuts) instead of the issue tracker.
The gophers there will answer or ask you to file an issue if you've tripped over a bug.
@ -23,9 +22,5 @@ The gophers there will answer or ask you to file an issue if you've tripped over
Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html)
before sending patches.
**We do not accept GitHub pull requests**
(we use [Gerrit](https://code.google.com/p/gerrit/) instead for code review).
Unless otherwise noted, the Go source files are distributed under
the BSD-style license found in the LICENSE file.

View File

@ -198,7 +198,7 @@ func (a LoadConstant) Assemble() (RawInstruction, error) {
return assembleLoad(a.Dst, 4, opAddrModeImmediate, a.Val)
}
// String returns the the instruction in assembler notation.
// String returns the instruction in assembler notation.
func (a LoadConstant) String() string {
switch a.Dst {
case RegA:
@ -224,7 +224,7 @@ func (a LoadScratch) Assemble() (RawInstruction, error) {
return assembleLoad(a.Dst, 4, opAddrModeScratch, uint32(a.N))
}
// String returns the the instruction in assembler notation.
// String returns the instruction in assembler notation.
func (a LoadScratch) String() string {
switch a.Dst {
case RegA:
@ -248,7 +248,7 @@ func (a LoadAbsolute) Assemble() (RawInstruction, error) {
return assembleLoad(RegA, a.Size, opAddrModeAbsolute, a.Off)
}
// String returns the the instruction in assembler notation.
// String returns the instruction in assembler notation.
func (a LoadAbsolute) String() string {
switch a.Size {
case 1: // byte
@ -277,7 +277,7 @@ func (a LoadIndirect) Assemble() (RawInstruction, error) {
return assembleLoad(RegA, a.Size, opAddrModeIndirect, a.Off)
}
// String returns the the instruction in assembler notation.
// String returns the instruction in assembler notation.
func (a LoadIndirect) String() string {
switch a.Size {
case 1: // byte
@ -306,7 +306,7 @@ func (a LoadMemShift) Assemble() (RawInstruction, error) {
return assembleLoad(RegX, 1, opAddrModeMemShift, a.Off)
}
// String returns the the instruction in assembler notation.
// String returns the instruction in assembler notation.
func (a LoadMemShift) String() string {
return fmt.Sprintf("ldx 4*([%d]&0xf)", a.Off)
}
@ -325,7 +325,7 @@ func (a LoadExtension) Assemble() (RawInstruction, error) {
return assembleLoad(RegA, 4, opAddrModeAbsolute, uint32(extOffset+a.Num))
}
// String returns the the instruction in assembler notation.
// String returns the instruction in assembler notation.
func (a LoadExtension) String() string {
switch a.Num {
case ExtLen:
@ -392,7 +392,7 @@ func (a StoreScratch) Assemble() (RawInstruction, error) {
}, nil
}
// String returns the the instruction in assembler notation.
// String returns the instruction in assembler notation.
func (a StoreScratch) String() string {
switch a.Src {
case RegA:
@ -418,7 +418,7 @@ func (a ALUOpConstant) Assemble() (RawInstruction, error) {
}, nil
}
// String returns the the instruction in assembler notation.
// String returns the instruction in assembler notation.
func (a ALUOpConstant) String() string {
switch a.Op {
case ALUOpAdd:
@ -458,7 +458,7 @@ func (a ALUOpX) Assemble() (RawInstruction, error) {
}, nil
}
// String returns the the instruction in assembler notation.
// String returns the instruction in assembler notation.
func (a ALUOpX) String() string {
switch a.Op {
case ALUOpAdd:
@ -496,7 +496,7 @@ func (a NegateA) Assemble() (RawInstruction, error) {
}, nil
}
// String returns the the instruction in assembler notation.
// String returns the instruction in assembler notation.
func (a NegateA) String() string {
return fmt.Sprintf("neg")
}
@ -514,7 +514,7 @@ func (a Jump) Assemble() (RawInstruction, error) {
}, nil
}
// String returns the the instruction in assembler notation.
// String returns the instruction in assembler notation.
func (a Jump) String() string {
return fmt.Sprintf("ja %d", a.Skip)
}
@ -566,7 +566,7 @@ func (a JumpIf) Assemble() (RawInstruction, error) {
}, nil
}
// String returns the the instruction in assembler notation.
// String returns the instruction in assembler notation.
func (a JumpIf) String() string {
switch a.Cond {
// K == A
@ -621,7 +621,7 @@ func (a RetA) Assemble() (RawInstruction, error) {
}, nil
}
// String returns the the instruction in assembler notation.
// String returns the instruction in assembler notation.
func (a RetA) String() string {
return fmt.Sprintf("ret a")
}
@ -639,7 +639,7 @@ func (a RetConstant) Assemble() (RawInstruction, error) {
}, nil
}
// String returns the the instruction in assembler notation.
// String returns the instruction in assembler notation.
func (a RetConstant) String() string {
return fmt.Sprintf("ret #%d", a.Val)
}
@ -654,7 +654,7 @@ func (a TXA) Assemble() (RawInstruction, error) {
}, nil
}
// String returns the the instruction in assembler notation.
// String returns the instruction in assembler notation.
func (a TXA) String() string {
return fmt.Sprintf("txa")
}
@ -669,7 +669,7 @@ func (a TAX) Assemble() (RawInstruction, error) {
}, nil
}
// String returns the the instruction in assembler notation.
// String returns the instruction in assembler notation.
func (a TAX) String() string {
return fmt.Sprintf("tax")
}

View File

@ -37,20 +37,20 @@ func ExampleParser() {
},
Answers: []dnsmessage.Resource{
{
dnsmessage.ResourceHeader{
Header: dnsmessage.ResourceHeader{
Name: mustNewName("foo.bar.example.com."),
Type: dnsmessage.TypeA,
Class: dnsmessage.ClassINET,
},
&dnsmessage.AResource{[4]byte{127, 0, 0, 1}},
Body: &dnsmessage.AResource{A: [4]byte{127, 0, 0, 1}},
},
{
dnsmessage.ResourceHeader{
Header: dnsmessage.ResourceHeader{
Name: mustNewName("bar.example.com."),
Type: dnsmessage.TypeA,
Class: dnsmessage.ClassINET,
},
&dnsmessage.AResource{[4]byte{127, 0, 0, 2}},
Body: &dnsmessage.AResource{A: [4]byte{127, 0, 0, 2}},
},
},
}

View File

@ -90,6 +90,8 @@ var (
errTooManyAuthorities = errors.New("too many Authorities to pack (>65535)")
errTooManyAdditionals = errors.New("too many Additionals to pack (>65535)")
errNonCanonicalName = errors.New("name is not in canonical format (it must end with a .)")
errStringTooLong = errors.New("character string exceeds maximum length (255)")
errCompressedSRV = errors.New("compressed name in SRV resource data")
)
// Internal constants.
@ -218,6 +220,7 @@ func (h *header) count(sec section) uint16 {
return 0
}
// pack appends the wire format of the header to msg.
func (h *header) pack(msg []byte) []byte {
msg = packUint16(msg, h.id)
msg = packUint16(msg, h.bits)
@ -273,25 +276,26 @@ type Resource struct {
// A ResourceBody is a DNS resource record minus the header.
type ResourceBody interface {
// pack packs a Resource except for its header.
pack(msg []byte, compression map[string]int) ([]byte, error)
pack(msg []byte, compression map[string]int, compressionOff int) ([]byte, error)
// realType returns the actual type of the Resource. This is used to
// fill in the header Type field.
realType() Type
}
func (r *Resource) pack(msg []byte, compression map[string]int) ([]byte, error) {
// pack appends the wire format of the Resource to msg.
func (r *Resource) pack(msg []byte, compression map[string]int, compressionOff int) ([]byte, error) {
if r.Body == nil {
return msg, errNilResouceBody
}
oldMsg := msg
r.Header.Type = r.Body.realType()
msg, length, err := r.Header.pack(msg, compression)
msg, length, err := r.Header.pack(msg, compression, compressionOff)
if err != nil {
return msg, &nestedError{"ResourceHeader", err}
}
preLen := len(msg)
msg, err = r.Body.pack(msg, compression)
msg, err = r.Body.pack(msg, compression, compressionOff)
if err != nil {
return msg, &nestedError{"content", err}
}
@ -436,7 +440,13 @@ func (p *Parser) Question() (Question, error) {
// AllQuestions parses all Questions.
func (p *Parser) AllQuestions() ([]Question, error) {
qs := make([]Question, 0, p.header.questions)
// Multiple questions are valid according to the spec,
// but servers don't actually support them. There will
// be at most one question here.
//
// Do not pre-allocate based on info in p.header, since
// the data is untrusted.
qs := []Question{}
for {
q, err := p.Question()
if err == ErrSectionDone {
@ -492,7 +502,16 @@ func (p *Parser) Answer() (Resource, error) {
// AllAnswers parses all Answer Resources.
func (p *Parser) AllAnswers() ([]Resource, error) {
as := make([]Resource, 0, p.header.answers)
// The most common query is for A/AAAA, which usually returns
// a handful of IPs.
//
// Pre-allocate up to a certain limit, since p.header is
// untrusted data.
n := int(p.header.answers)
if n > 20 {
n = 20
}
as := make([]Resource, 0, n)
for {
a, err := p.Answer()
if err == ErrSectionDone {
@ -533,7 +552,16 @@ func (p *Parser) Authority() (Resource, error) {
// AllAuthorities parses all Authority Resources.
func (p *Parser) AllAuthorities() ([]Resource, error) {
as := make([]Resource, 0, p.header.authorities)
// Authorities contains SOA in case of NXDOMAIN and friends,
// otherwise it is empty.
//
// Pre-allocate up to a certain limit, since p.header is
// untrusted data.
n := int(p.header.authorities)
if n > 10 {
n = 10
}
as := make([]Resource, 0, n)
for {
a, err := p.Authority()
if err == ErrSectionDone {
@ -574,7 +602,16 @@ func (p *Parser) Additional() (Resource, error) {
// AllAdditionals parses all Additional Resources.
func (p *Parser) AllAdditionals() ([]Resource, error) {
as := make([]Resource, 0, p.header.additionals)
// Additionals usually contain OPT, and sometimes A/AAAA
// glue records.
//
// Pre-allocate up to a certain limit, since p.header is
// untrusted data.
n := int(p.header.additionals)
if n > 10 {
n = 10
}
as := make([]Resource, 0, n)
for {
a, err := p.Additional()
if err == ErrSectionDone {
@ -819,6 +856,7 @@ func (m *Message) AppendPack(b []byte) ([]byte, error) {
h.authorities = uint16(len(m.Authorities))
h.additionals = uint16(len(m.Additionals))
compressionOff := len(b)
msg := h.pack(b)
// RFC 1035 allows (but does not require) compression for packing. RFC
@ -833,25 +871,25 @@ func (m *Message) AppendPack(b []byte) ([]byte, error) {
for i := range m.Questions {
var err error
if msg, err = m.Questions[i].pack(msg, compression); err != nil {
if msg, err = m.Questions[i].pack(msg, compression, compressionOff); err != nil {
return nil, &nestedError{"packing Question", err}
}
}
for i := range m.Answers {
var err error
if msg, err = m.Answers[i].pack(msg, compression); err != nil {
if msg, err = m.Answers[i].pack(msg, compression, compressionOff); err != nil {
return nil, &nestedError{"packing Answer", err}
}
}
for i := range m.Authorities {
var err error
if msg, err = m.Authorities[i].pack(msg, compression); err != nil {
if msg, err = m.Authorities[i].pack(msg, compression, compressionOff); err != nil {
return nil, &nestedError{"packing Authority", err}
}
}
for i := range m.Additionals {
var err error
if msg, err = m.Additionals[i].pack(msg, compression); err != nil {
if msg, err = m.Additionals[i].pack(msg, compression, compressionOff); err != nil {
return nil, &nestedError{"packing Additional", err}
}
}
@ -860,36 +898,69 @@ func (m *Message) AppendPack(b []byte) ([]byte, error) {
}
// A Builder allows incrementally packing a DNS message.
//
// Example usage:
// buf := make([]byte, 2, 514)
// b := NewBuilder(buf, Header{...})
// b.EnableCompression()
// // Optionally start a section and add things to that section.
// // Repeat adding sections as necessary.
// buf, err := b.Finish()
// // If err is nil, buf[2:] will contain the built bytes.
type Builder struct {
msg []byte
header header
section section
// msg is the storage for the message being built.
msg []byte
// section keeps track of the current section being built.
section section
// header keeps track of what should go in the header when Finish is
// called.
header header
// start is the starting index of the bytes allocated in msg for header.
start int
// compression is a mapping from name suffixes to their starting index
// in msg.
compression map[string]int
}
// Start initializes the builder.
// NewBuilder creates a new builder with compression disabled.
//
// buf is optional (nil is fine), but if provided, Start takes ownership of buf.
func (b *Builder) Start(buf []byte, h Header) {
b.StartWithoutCompression(buf, h)
b.compression = map[string]int{}
// Note: Most users will want to immediately enable compression with the
// EnableCompression method. See that method's comment for why you may or may
// not want to enable compression.
//
// The DNS message is appended to the provided initial buffer buf (which may be
// nil) as it is built. The final message is returned by the (*Builder).Finish
// method, which may return the same underlying array if there was sufficient
// capacity in the slice.
func NewBuilder(buf []byte, h Header) Builder {
if buf == nil {
buf = make([]byte, 0, packStartingCap)
}
b := Builder{msg: buf, start: len(buf)}
b.header.id, b.header.bits = h.pack()
var hb [headerLen]byte
b.msg = append(b.msg, hb[:]...)
b.section = sectionHeader
return b
}
// StartWithoutCompression initializes the builder with compression disabled.
// EnableCompression enables compression in the Builder.
//
// This avoids compression related allocations, but can result in larger message
// sizes. Be careful with this mode as it can cause messages to exceed the UDP
// size limit.
// Leaving compression disabled avoids compression related allocations, but can
// result in larger message sizes. Be careful with this mode as it can cause
// messages to exceed the UDP size limit.
//
// buf is optional (nil is fine), but if provided, Start takes ownership of buf.
func (b *Builder) StartWithoutCompression(buf []byte, h Header) {
*b = Builder{msg: buf}
b.header.id, b.header.bits = h.pack()
if cap(b.msg) < headerLen {
b.msg = make([]byte, 0, packStartingCap)
}
b.msg = b.msg[:headerLen]
b.section = sectionHeader
// According to RFC 1035, section 4.1.4, the use of compression is optional, but
// all implementations must accept both compressed and uncompressed DNS
// messages.
//
// Compression should be enabled before any sections are added for best results.
func (b *Builder) EnableCompression() {
b.compression = map[string]int{}
}
func (b *Builder) startCheck(s section) error {
@ -970,7 +1041,7 @@ func (b *Builder) Question(q Question) error {
if b.section > sectionQuestions {
return ErrSectionDone
}
msg, err := q.pack(b.msg, b.compression)
msg, err := q.pack(b.msg, b.compression, b.start)
if err != nil {
return err
}
@ -997,12 +1068,12 @@ func (b *Builder) CNAMEResource(h ResourceHeader, r CNAMEResource) error {
return err
}
h.Type = r.realType()
msg, length, err := h.pack(b.msg, b.compression)
msg, length, err := h.pack(b.msg, b.compression, b.start)
if err != nil {
return &nestedError{"ResourceHeader", err}
}
preLen := len(msg)
if msg, err = r.pack(msg, b.compression); err != nil {
if msg, err = r.pack(msg, b.compression, b.start); err != nil {
return &nestedError{"CNAMEResource body", err}
}
if err := h.fixLen(msg, length, preLen); err != nil {
@ -1021,12 +1092,12 @@ func (b *Builder) MXResource(h ResourceHeader, r MXResource) error {
return err
}
h.Type = r.realType()
msg, length, err := h.pack(b.msg, b.compression)
msg, length, err := h.pack(b.msg, b.compression, b.start)
if err != nil {
return &nestedError{"ResourceHeader", err}
}
preLen := len(msg)
if msg, err = r.pack(msg, b.compression); err != nil {
if msg, err = r.pack(msg, b.compression, b.start); err != nil {
return &nestedError{"MXResource body", err}
}
if err := h.fixLen(msg, length, preLen); err != nil {
@ -1045,12 +1116,12 @@ func (b *Builder) NSResource(h ResourceHeader, r NSResource) error {
return err
}
h.Type = r.realType()
msg, length, err := h.pack(b.msg, b.compression)
msg, length, err := h.pack(b.msg, b.compression, b.start)
if err != nil {
return &nestedError{"ResourceHeader", err}
}
preLen := len(msg)
if msg, err = r.pack(msg, b.compression); err != nil {
if msg, err = r.pack(msg, b.compression, b.start); err != nil {
return &nestedError{"NSResource body", err}
}
if err := h.fixLen(msg, length, preLen); err != nil {
@ -1069,12 +1140,12 @@ func (b *Builder) PTRResource(h ResourceHeader, r PTRResource) error {
return err
}
h.Type = r.realType()
msg, length, err := h.pack(b.msg, b.compression)
msg, length, err := h.pack(b.msg, b.compression, b.start)
if err != nil {
return &nestedError{"ResourceHeader", err}
}
preLen := len(msg)
if msg, err = r.pack(msg, b.compression); err != nil {
if msg, err = r.pack(msg, b.compression, b.start); err != nil {
return &nestedError{"PTRResource body", err}
}
if err := h.fixLen(msg, length, preLen); err != nil {
@ -1093,12 +1164,12 @@ func (b *Builder) SOAResource(h ResourceHeader, r SOAResource) error {
return err
}
h.Type = r.realType()
msg, length, err := h.pack(b.msg, b.compression)
msg, length, err := h.pack(b.msg, b.compression, b.start)
if err != nil {
return &nestedError{"ResourceHeader", err}
}
preLen := len(msg)
if msg, err = r.pack(msg, b.compression); err != nil {
if msg, err = r.pack(msg, b.compression, b.start); err != nil {
return &nestedError{"SOAResource body", err}
}
if err := h.fixLen(msg, length, preLen); err != nil {
@ -1117,12 +1188,12 @@ func (b *Builder) TXTResource(h ResourceHeader, r TXTResource) error {
return err
}
h.Type = r.realType()
msg, length, err := h.pack(b.msg, b.compression)
msg, length, err := h.pack(b.msg, b.compression, b.start)
if err != nil {
return &nestedError{"ResourceHeader", err}
}
preLen := len(msg)
if msg, err = r.pack(msg, b.compression); err != nil {
if msg, err = r.pack(msg, b.compression, b.start); err != nil {
return &nestedError{"TXTResource body", err}
}
if err := h.fixLen(msg, length, preLen); err != nil {
@ -1141,12 +1212,12 @@ func (b *Builder) SRVResource(h ResourceHeader, r SRVResource) error {
return err
}
h.Type = r.realType()
msg, length, err := h.pack(b.msg, b.compression)
msg, length, err := h.pack(b.msg, b.compression, b.start)
if err != nil {
return &nestedError{"ResourceHeader", err}
}
preLen := len(msg)
if msg, err = r.pack(msg, b.compression); err != nil {
if msg, err = r.pack(msg, b.compression, b.start); err != nil {
return &nestedError{"SRVResource body", err}
}
if err := h.fixLen(msg, length, preLen); err != nil {
@ -1165,12 +1236,12 @@ func (b *Builder) AResource(h ResourceHeader, r AResource) error {
return err
}
h.Type = r.realType()
msg, length, err := h.pack(b.msg, b.compression)
msg, length, err := h.pack(b.msg, b.compression, b.start)
if err != nil {
return &nestedError{"ResourceHeader", err}
}
preLen := len(msg)
if msg, err = r.pack(msg, b.compression); err != nil {
if msg, err = r.pack(msg, b.compression, b.start); err != nil {
return &nestedError{"AResource body", err}
}
if err := h.fixLen(msg, length, preLen); err != nil {
@ -1189,12 +1260,12 @@ func (b *Builder) AAAAResource(h ResourceHeader, r AAAAResource) error {
return err
}
h.Type = r.realType()
msg, length, err := h.pack(b.msg, b.compression)
msg, length, err := h.pack(b.msg, b.compression, b.start)
if err != nil {
return &nestedError{"ResourceHeader", err}
}
preLen := len(msg)
if msg, err = r.pack(msg, b.compression); err != nil {
if msg, err = r.pack(msg, b.compression, b.start); err != nil {
return &nestedError{"AAAAResource body", err}
}
if err := h.fixLen(msg, length, preLen); err != nil {
@ -1213,7 +1284,8 @@ func (b *Builder) Finish() ([]byte, error) {
return nil, ErrNotStarted
}
b.section = sectionDone
b.header.pack(b.msg[:0])
// Space for the header was allocated in NewBuilder.
b.header.pack(b.msg[b.start:b.start])
return b.msg, nil
}
@ -1243,12 +1315,13 @@ type ResourceHeader struct {
Length uint16
}
// pack packs all of the fields in a ResourceHeader except for the length. The
// length bytes are returned as a slice so they can be filled in after the rest
// of the Resource has been packed.
func (h *ResourceHeader) pack(oldMsg []byte, compression map[string]int) (msg []byte, length []byte, err error) {
// pack appends the wire format of the ResourceHeader to oldMsg.
//
// The bytes where length was packed are returned as a slice so they can be
// updated after the rest of the Resource has been packed.
func (h *ResourceHeader) pack(oldMsg []byte, compression map[string]int, compressionOff int) (msg []byte, length []byte, err error) {
msg = oldMsg
if msg, err = h.Name.pack(msg, compression); err != nil {
if msg, err = h.Name.pack(msg, compression, compressionOff); err != nil {
return oldMsg, nil, &nestedError{"Name", err}
}
msg = packType(msg, h.Type)
@ -1317,6 +1390,7 @@ func skipResource(msg []byte, off int) (int, error) {
return newOff, nil
}
// packUint16 appends the wire format of field to msg.
func packUint16(msg []byte, field uint16) []byte {
return append(msg, byte(field>>8), byte(field))
}
@ -1335,6 +1409,7 @@ func skipUint16(msg []byte, off int) (int, error) {
return off + uint16Len, nil
}
// packType appends the wire format of field to msg.
func packType(msg []byte, field Type) []byte {
return packUint16(msg, uint16(field))
}
@ -1348,6 +1423,7 @@ func skipType(msg []byte, off int) (int, error) {
return skipUint16(msg, off)
}
// packClass appends the wire format of field to msg.
func packClass(msg []byte, field Class) []byte {
return packUint16(msg, uint16(field))
}
@ -1361,6 +1437,7 @@ func skipClass(msg []byte, off int) (int, error) {
return skipUint16(msg, off)
}
// packUint32 appends the wire format of field to msg.
func packUint32(msg []byte, field uint32) []byte {
return append(
msg,
@ -1386,17 +1463,16 @@ func skipUint32(msg []byte, off int) (int, error) {
return off + uint32Len, nil
}
func packText(msg []byte, field string) []byte {
for len(field) > 0 {
l := len(field)
if l > 255 {
l = 255
}
msg = append(msg, byte(l))
msg = append(msg, field[:l]...)
field = field[l:]
// packText appends the wire format of field to msg.
func packText(msg []byte, field string) ([]byte, error) {
l := len(field)
if l > 255 {
return nil, errStringTooLong
}
return msg
msg = append(msg, byte(l))
msg = append(msg, field...)
return msg, nil
}
func unpackText(msg []byte, off int) (string, int, error) {
@ -1422,6 +1498,7 @@ func skipText(msg []byte, off int) (int, error) {
return endOff, nil
}
// packBytes appends the wire format of field to msg.
func packBytes(msg []byte, field []byte) []byte {
return append(msg, field...)
}
@ -1466,14 +1543,14 @@ func (n Name) String() string {
return string(n.Data[:n.Length])
}
// pack packs a domain name.
// pack appends the wire format of the Name to msg.
//
// Domain names are a sequence of counted strings split at the dots. They end
// with a zero-length string. Compression can be used to reuse domain suffixes.
//
// The compression map will be updated with new domain suffixes. If compression
// is nil, compression will not be used.
func (n *Name) pack(msg []byte, compression map[string]int) ([]byte, error) {
func (n *Name) pack(msg []byte, compression map[string]int, compressionOff int) ([]byte, error) {
oldMsg := msg
// Add a trailing dot to canonicalize name.
@ -1525,7 +1602,7 @@ func (n *Name) pack(msg []byte, compression map[string]int) ([]byte, error) {
// Miss. Add the suffix to the compression table if the
// offset can be stored in the available 14 bytes.
if len(msg) <= int(^uint16(0)>>2) {
compression[string(n.Data[i:])] = len(msg)
compression[string(n.Data[i:])] = len(msg) - compressionOff
}
}
}
@ -1534,6 +1611,10 @@ func (n *Name) pack(msg []byte, compression map[string]int) ([]byte, error) {
// unpack unpacks a domain name.
func (n *Name) unpack(msg []byte, off int) (int, error) {
return n.unpackCompressed(msg, off, true /* allowCompression */)
}
func (n *Name) unpackCompressed(msg []byte, off int, allowCompression bool) (int, error) {
// currOff is the current working offset.
currOff := off
@ -1569,6 +1650,9 @@ Loop:
name = append(name, '.')
currOff = endOff
case 0xC0: // Pointer
if !allowCompression {
return off, errCompressedSRV
}
if currOff >= len(msg) {
return off, errInvalidPtr
}
@ -1648,8 +1732,9 @@ type Question struct {
Class Class
}
func (q *Question) pack(msg []byte, compression map[string]int) ([]byte, error) {
msg, err := q.Name.pack(msg, compression)
// pack appends the wire format of the Question to msg.
func (q *Question) pack(msg []byte, compression map[string]int, compressionOff int) ([]byte, error) {
msg, err := q.Name.pack(msg, compression, compressionOff)
if err != nil {
return msg, &nestedError{"Name", err}
}
@ -1728,8 +1813,9 @@ func (r *CNAMEResource) realType() Type {
return TypeCNAME
}
func (r *CNAMEResource) pack(msg []byte, compression map[string]int) ([]byte, error) {
return r.CNAME.pack(msg, compression)
// pack appends the wire format of the CNAMEResource to msg.
func (r *CNAMEResource) pack(msg []byte, compression map[string]int, compressionOff int) ([]byte, error) {
return r.CNAME.pack(msg, compression, compressionOff)
}
func unpackCNAMEResource(msg []byte, off int) (CNAMEResource, error) {
@ -1750,10 +1836,11 @@ func (r *MXResource) realType() Type {
return TypeMX
}
func (r *MXResource) pack(msg []byte, compression map[string]int) ([]byte, error) {
// pack appends the wire format of the MXResource to msg.
func (r *MXResource) pack(msg []byte, compression map[string]int, compressionOff int) ([]byte, error) {
oldMsg := msg
msg = packUint16(msg, r.Pref)
msg, err := r.MX.pack(msg, compression)
msg, err := r.MX.pack(msg, compression, compressionOff)
if err != nil {
return oldMsg, &nestedError{"MXResource.MX", err}
}
@ -1781,8 +1868,9 @@ func (r *NSResource) realType() Type {
return TypeNS
}
func (r *NSResource) pack(msg []byte, compression map[string]int) ([]byte, error) {
return r.NS.pack(msg, compression)
// pack appends the wire format of the NSResource to msg.
func (r *NSResource) pack(msg []byte, compression map[string]int, compressionOff int) ([]byte, error) {
return r.NS.pack(msg, compression, compressionOff)
}
func unpackNSResource(msg []byte, off int) (NSResource, error) {
@ -1802,8 +1890,9 @@ func (r *PTRResource) realType() Type {
return TypePTR
}
func (r *PTRResource) pack(msg []byte, compression map[string]int) ([]byte, error) {
return r.PTR.pack(msg, compression)
// pack appends the wire format of the PTRResource to msg.
func (r *PTRResource) pack(msg []byte, compression map[string]int, compressionOff int) ([]byte, error) {
return r.PTR.pack(msg, compression, compressionOff)
}
func unpackPTRResource(msg []byte, off int) (PTRResource, error) {
@ -1833,13 +1922,14 @@ func (r *SOAResource) realType() Type {
return TypeSOA
}
func (r *SOAResource) pack(msg []byte, compression map[string]int) ([]byte, error) {
// pack appends the wire format of the SOAResource to msg.
func (r *SOAResource) pack(msg []byte, compression map[string]int, compressionOff int) ([]byte, error) {
oldMsg := msg
msg, err := r.NS.pack(msg, compression)
msg, err := r.NS.pack(msg, compression, compressionOff)
if err != nil {
return oldMsg, &nestedError{"SOAResource.NS", err}
}
msg, err = r.MBox.pack(msg, compression)
msg, err = r.MBox.pack(msg, compression, compressionOff)
if err != nil {
return oldMsg, &nestedError{"SOAResource.MBox", err}
}
@ -1885,19 +1975,28 @@ func unpackSOAResource(msg []byte, off int) (SOAResource, error) {
// A TXTResource is a TXT Resource record.
type TXTResource struct {
Txt string // Not a domain name.
TXT []string
}
func (r *TXTResource) realType() Type {
return TypeTXT
}
func (r *TXTResource) pack(msg []byte, compression map[string]int) ([]byte, error) {
return packText(msg, r.Txt), nil
// pack appends the wire format of the TXTResource to msg.
func (r *TXTResource) pack(msg []byte, compression map[string]int, compressionOff int) ([]byte, error) {
oldMsg := msg
for _, s := range r.TXT {
var err error
msg, err = packText(msg, s)
if err != nil {
return oldMsg, err
}
}
return msg, nil
}
func unpackTXTResource(msg []byte, off int, length uint16) (TXTResource, error) {
var txt string
txts := make([]string, 0, 1)
for n := uint16(0); n < length; {
var t string
var err error
@ -1909,9 +2008,9 @@ func unpackTXTResource(msg []byte, off int, length uint16) (TXTResource, error)
return TXTResource{}, errCalcLen
}
n += uint16(len(t)) + 1
txt += t
txts = append(txts, t)
}
return TXTResource{txt}, nil
return TXTResource{txts}, nil
}
// An SRVResource is an SRV Resource record.
@ -1926,12 +2025,13 @@ func (r *SRVResource) realType() Type {
return TypeSRV
}
func (r *SRVResource) pack(msg []byte, compression map[string]int) ([]byte, error) {
// pack appends the wire format of the SRVResource to msg.
func (r *SRVResource) pack(msg []byte, compression map[string]int, compressionOff int) ([]byte, error) {
oldMsg := msg
msg = packUint16(msg, r.Priority)
msg = packUint16(msg, r.Weight)
msg = packUint16(msg, r.Port)
msg, err := r.Target.pack(msg, nil)
msg, err := r.Target.pack(msg, nil, compressionOff)
if err != nil {
return oldMsg, &nestedError{"SRVResource.Target", err}
}
@ -1952,7 +2052,7 @@ func unpackSRVResource(msg []byte, off int) (SRVResource, error) {
return SRVResource{}, &nestedError{"Port", err}
}
var target Name
if _, err := target.unpack(msg, off); err != nil {
if _, err := target.unpackCompressed(msg, off, false /* allowCompression */); err != nil {
return SRVResource{}, &nestedError{"Target", err}
}
return SRVResource{priority, weight, port, target}, nil
@ -1967,7 +2067,8 @@ func (r *AResource) realType() Type {
return TypeA
}
func (r *AResource) pack(msg []byte, compression map[string]int) ([]byte, error) {
// pack appends the wire format of the AResource to msg.
func (r *AResource) pack(msg []byte, compression map[string]int, compressionOff int) ([]byte, error) {
return packBytes(msg, r.A[:]), nil
}
@ -1988,7 +2089,8 @@ func (r *AAAAResource) realType() Type {
return TypeAAAA
}
func (r *AAAAResource) pack(msg []byte, compression map[string]int) ([]byte, error) {
// pack appends the wire format of the AAAAResource to msg.
func (r *AAAAResource) pack(msg []byte, compression map[string]int, compressionOff int) ([]byte, error) {
return packBytes(msg, r.AAAA[:]), nil
}

View File

@ -8,6 +8,7 @@ import (
"bytes"
"fmt"
"reflect"
"strings"
"testing"
)
@ -62,7 +63,7 @@ func TestQuestionPackUnpack(t *testing.T) {
Type: TypeA,
Class: ClassINET,
}
buf, err := want.pack(make([]byte, 1, 50), map[string]int{})
buf, err := want.pack(make([]byte, 1, 50), map[string]int{}, 1)
if err != nil {
t.Fatal("Packing failed:", err)
}
@ -129,7 +130,7 @@ func TestNamePackUnpack(t *testing.T) {
for _, test := range tests {
in := mustNewName(test.in)
want := mustNewName(test.want)
buf, err := in.pack(make([]byte, 0, 30), map[string]int{})
buf, err := in.pack(make([]byte, 0, 30), map[string]int{}, 0)
if err != test.err {
t.Errorf("Packing of %q: got err = %v, want err = %v", test.in, err, test.err)
continue
@ -157,6 +158,28 @@ func TestNamePackUnpack(t *testing.T) {
}
}
func TestIncompressibleName(t *testing.T) {
name := mustNewName("example.com.")
compression := map[string]int{}
buf, err := name.pack(make([]byte, 0, 100), compression, 0)
if err != nil {
t.Fatal("First packing failed:", err)
}
buf, err = name.pack(buf, compression, 0)
if err != nil {
t.Fatal("Second packing failed:", err)
}
var n1 Name
off, err := n1.unpackCompressed(buf, 0, false /* allowCompression */)
if err != nil {
t.Fatal("Unpacking incompressible name without pointers failed:", err)
}
var n2 Name
if _, err := n2.unpackCompressed(buf, off, false /* allowCompression */); err != errCompressedSRV {
t.Errorf("Unpacking compressed incompressible name with pointers: got err = %v, want = %v", err, errCompressedSRV)
}
}
func checkErrorPrefix(err error, prefix string) bool {
e, ok := err.(*nestedError)
return ok && e.s == prefix
@ -248,6 +271,40 @@ func TestDNSPackUnpack(t *testing.T) {
}
}
func TestDNSAppendPackUnpack(t *testing.T) {
wants := []Message{
{
Questions: []Question{
{
Name: mustNewName("."),
Type: TypeAAAA,
Class: ClassINET,
},
},
Answers: []Resource{},
Authorities: []Resource{},
Additionals: []Resource{},
},
largeTestMsg(),
}
for i, want := range wants {
b := make([]byte, 2, 514)
b, err := want.AppendPack(b)
if err != nil {
t.Fatalf("%d: packing failed: %v", i, err)
}
b = b[2:]
var got Message
err = got.Unpack(b)
if err != nil {
t.Fatalf("%d: unpacking failed: %v", i, err)
}
if !reflect.DeepEqual(got, want) {
t.Errorf("%d: got = %+v, want = %+v", i, &got, &want)
}
}
}
func TestSkipAll(t *testing.T) {
msg := largeTestMsg()
buf, err := msg.Pack()
@ -410,9 +467,17 @@ func TestVeryLongTxt(t *testing.T) {
Type: TypeTXT,
Class: ClassINET,
},
&TXTResource{loremIpsum},
&TXTResource{[]string{
"",
"",
"foo bar",
"",
"www.example.com",
"www.example.com.",
strings.Repeat(".", 255),
}},
}
buf, err := want.pack(make([]byte, 0, 8000), map[string]int{})
buf, err := want.pack(make([]byte, 0, 8000), map[string]int{}, 0)
if err != nil {
t.Fatal("Packing failed:", err)
}
@ -434,6 +499,33 @@ func TestVeryLongTxt(t *testing.T) {
}
}
func TestTooLongTxt(t *testing.T) {
rb := TXTResource{[]string{strings.Repeat(".", 256)}}
if _, err := rb.pack(make([]byte, 0, 8000), map[string]int{}, 0); err != errStringTooLong {
t.Errorf("Packing TXTRecord with 256 character string: got err = %v, want = %v", err, errStringTooLong)
}
}
func TestStartAppends(t *testing.T) {
buf := make([]byte, 2, 514)
wantBuf := []byte{4, 44}
copy(buf, wantBuf)
b := NewBuilder(buf, Header{})
b.EnableCompression()
buf, err := b.Finish()
if err != nil {
t.Fatal("Building failed:", err)
}
if got, want := len(buf), headerLen+2; got != want {
t.Errorf("Got len(buf} = %d, want = %d", got, want)
}
if string(buf[:2]) != string(wantBuf) {
t.Errorf("Original data not preserved, got = %v, want = %v", buf[:2], wantBuf)
}
}
func TestStartError(t *testing.T) {
tests := []struct {
name string
@ -514,8 +606,8 @@ func TestBuilder(t *testing.T) {
t.Fatal("Packing without builder:", err)
}
var b Builder
b.Start(nil, msg.Header)
b := NewBuilder(nil, msg.Header)
b.EnableCompression()
if err := b.StartQuestions(); err != nil {
t.Fatal("b.StartQuestions():", err)
@ -653,9 +745,7 @@ func TestResourcePack(t *testing.T) {
}
}
func BenchmarkParsing(b *testing.B) {
b.ReportAllocs()
func benchmarkParsingSetup() ([]byte, error) {
name := mustNewName("foo.bar.example.com.")
msg := Message{
Header: Header{Response: true, Authoritative: true},
@ -700,111 +790,148 @@ func BenchmarkParsing(b *testing.B) {
buf, err := msg.Pack()
if err != nil {
b.Fatal("msg.Pack():", err)
return nil, fmt.Errorf("msg.Pack(): %v", err)
}
return buf, nil
}
func benchmarkParsing(tb testing.TB, buf []byte) {
var p Parser
if _, err := p.Start(buf); err != nil {
tb.Fatal("p.Start(buf):", err)
}
for i := 0; i < b.N; i++ {
var p Parser
if _, err := p.Start(buf); err != nil {
b.Fatal("p.Start(buf):", err)
for {
_, err := p.Question()
if err == ErrSectionDone {
break
}
if err != nil {
tb.Fatal("p.Question():", err)
}
}
for {
h, err := p.AnswerHeader()
if err == ErrSectionDone {
break
}
if err != nil {
panic(err)
}
for {
_, err := p.Question()
if err == ErrSectionDone {
break
switch h.Type {
case TypeA:
if _, err := p.AResource(); err != nil {
tb.Fatal("p.AResource():", err)
}
if err != nil {
b.Fatal("p.Question():", err)
case TypeAAAA:
if _, err := p.AAAAResource(); err != nil {
tb.Fatal("p.AAAAResource():", err)
}
}
for {
h, err := p.AnswerHeader()
if err == ErrSectionDone {
break
case TypeCNAME:
if _, err := p.CNAMEResource(); err != nil {
tb.Fatal("p.CNAMEResource():", err)
}
if err != nil {
panic(err)
}
switch h.Type {
case TypeA:
if _, err := p.AResource(); err != nil {
b.Fatal("p.AResource():", err)
}
case TypeAAAA:
if _, err := p.AAAAResource(); err != nil {
b.Fatal("p.AAAAResource():", err)
}
case TypeCNAME:
if _, err := p.CNAMEResource(); err != nil {
b.Fatal("p.CNAMEResource():", err)
}
case TypeNS:
if _, err := p.NSResource(); err != nil {
b.Fatal("p.NSResource():", err)
}
default:
b.Fatalf("unknown type: %T", h)
case TypeNS:
if _, err := p.NSResource(); err != nil {
tb.Fatal("p.NSResource():", err)
}
default:
tb.Fatalf("unknown type: %T", h)
}
}
}
func BenchmarkBuilding(b *testing.B) {
b.ReportAllocs()
func BenchmarkParsing(b *testing.B) {
buf, err := benchmarkParsingSetup()
if err != nil {
b.Fatal(err)
}
b.ReportAllocs()
for i := 0; i < b.N; i++ {
benchmarkParsing(b, buf)
}
}
func TestParsingAllocs(t *testing.T) {
buf, err := benchmarkParsingSetup()
if err != nil {
t.Fatal(err)
}
if allocs := testing.AllocsPerRun(100, func() { benchmarkParsing(t, buf) }); allocs > 0.5 {
t.Errorf("Allocations during parsing: got = %f, want ~0", allocs)
}
}
func benchmarkBuildingSetup() (Name, []byte) {
name := mustNewName("foo.bar.example.com.")
buf := make([]byte, 0, packStartingCap)
return name, buf
}
func benchmarkBuilding(tb testing.TB, name Name, buf []byte) {
bld := NewBuilder(buf, Header{Response: true, Authoritative: true})
if err := bld.StartQuestions(); err != nil {
tb.Fatal("bld.StartQuestions():", err)
}
q := Question{
Name: name,
Type: TypeA,
Class: ClassINET,
}
if err := bld.Question(q); err != nil {
tb.Fatalf("bld.Question(%+v): %v", q, err)
}
hdr := ResourceHeader{
Name: name,
Class: ClassINET,
}
if err := bld.StartAnswers(); err != nil {
tb.Fatal("bld.StartQuestions():", err)
}
ar := AResource{[4]byte{}}
if err := bld.AResource(hdr, ar); err != nil {
tb.Fatalf("bld.AResource(%+v, %+v): %v", hdr, ar, err)
}
aaar := AAAAResource{[16]byte{}}
if err := bld.AAAAResource(hdr, aaar); err != nil {
tb.Fatalf("bld.AAAAResource(%+v, %+v): %v", hdr, aaar, err)
}
cnr := CNAMEResource{name}
if err := bld.CNAMEResource(hdr, cnr); err != nil {
tb.Fatalf("bld.CNAMEResource(%+v, %+v): %v", hdr, cnr, err)
}
nsr := NSResource{name}
if err := bld.NSResource(hdr, nsr); err != nil {
tb.Fatalf("bld.NSResource(%+v, %+v): %v", hdr, nsr, err)
}
if _, err := bld.Finish(); err != nil {
tb.Fatal("bld.Finish():", err)
}
}
func BenchmarkBuilding(b *testing.B) {
name, buf := benchmarkBuildingSetup()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
var bld Builder
bld.StartWithoutCompression(buf, Header{Response: true, Authoritative: true})
benchmarkBuilding(b, name, buf)
}
}
if err := bld.StartQuestions(); err != nil {
b.Fatal("bld.StartQuestions():", err)
}
q := Question{
Name: name,
Type: TypeA,
Class: ClassINET,
}
if err := bld.Question(q); err != nil {
b.Fatalf("bld.Question(%+v): %v", q, err)
}
hdr := ResourceHeader{
Name: name,
Class: ClassINET,
}
if err := bld.StartAnswers(); err != nil {
b.Fatal("bld.StartQuestions():", err)
}
ar := AResource{[4]byte{}}
if err := bld.AResource(hdr, ar); err != nil {
b.Fatalf("bld.AResource(%+v, %+v): %v", hdr, ar, err)
}
aaar := AAAAResource{[16]byte{}}
if err := bld.AAAAResource(hdr, aaar); err != nil {
b.Fatalf("bld.AAAAResource(%+v, %+v): %v", hdr, aaar, err)
}
cnr := CNAMEResource{name}
if err := bld.CNAMEResource(hdr, cnr); err != nil {
b.Fatalf("bld.CNAMEResource(%+v, %+v): %v", hdr, cnr, err)
}
nsr := NSResource{name}
if err := bld.NSResource(hdr, nsr); err != nil {
b.Fatalf("bld.NSResource(%+v, %+v): %v", hdr, nsr, err)
}
if _, err := bld.Finish(); err != nil {
b.Fatal("bld.Finish():", err)
}
func TestBuildingAllocs(t *testing.T) {
name, buf := benchmarkBuildingSetup()
if allocs := testing.AllocsPerRun(100, func() { benchmarkBuilding(t, name, buf) }); allocs > 0.5 {
t.Errorf("Allocations during building: got = %f, want ~0", allocs)
}
}
@ -995,7 +1122,7 @@ func largeTestMsg() Message {
Type: TypeTXT,
Class: ClassINET,
},
&TXTResource{"So Long, and Thanks for All the Fish"},
&TXTResource{[]string{"So Long, and Thanks for All the Fish"}},
},
{
ResourceHeader{
@ -1003,139 +1130,8 @@ func largeTestMsg() Message {
Type: TypeTXT,
Class: ClassINET,
},
&TXTResource{"Hamster Huey and the Gooey Kablooie"},
&TXTResource{[]string{"Hamster Huey and the Gooey Kablooie"}},
},
},
}
}
const loremIpsum = `
Lorem ipsum dolor sit amet, nec enim antiopam id, an ullum choro
nonumes qui, pro eu debet honestatis mediocritatem. No alia enim eos,
magna signiferumque ex vis. Mei no aperiri dissentias, cu vel quas
regione. Malorum quaeque vim ut, eum cu semper aliquid invidunt, ei
nam ipsum assentior.
Nostrum appellantur usu no, vis ex probatus adipiscing. Cu usu illum
facilis eleifend. Iusto conceptam complectitur vim id. Tale omnesque
no usu, ei oblique sadipscing vim. At nullam voluptua usu, mei laudem
reformidans et. Qui ei eros porro reformidans, ius suas veritus
torquatos ex. Mea te facer alterum consequat.
Soleat torquatos democritum sed et, no mea congue appareat, facer
aliquam nec in. Has te ipsum tritani. At justo dicta option nec, movet
phaedrum ad nam. Ea detracto verterem liberavisse has, delectus
suscipiantur in mei. Ex nam meliore complectitur. Ut nam omnis
honestatis quaerendum, ea mea nihil affert detracto, ad vix rebum
mollis.
Ut epicurei praesent neglegentur pri, prima fuisset intellegebat ad
vim. An habemus comprehensam usu, at enim dignissim pro. Eam reque
vivendum adipisci ea. Vel ne odio choro minimum. Sea admodum
dissentiet ex. Mundi tamquam evertitur ius cu. Homero postea iisque ut
pro, vel ne saepe senserit consetetur.
Nulla utamur facilisis ius ea, in viderer diceret pertinax eum. Mei no
enim quodsi facilisi, ex sed aeterno appareat mediocritatem, eum
sententiae deterruisset ut. At suas timeam euismod cum, offendit
appareat interpretaris ne vix. Vel ea civibus albucius, ex vim quidam
accusata intellegebat, noluisse instructior sea id. Nec te nonumes
habemus appellantur, quis dignissim vituperata eu nam.
At vix apeirian patrioque vituperatoribus, an usu agam assum. Debet
iisque an mea. Per eu dicant ponderum accommodare. Pri alienum
placerat senserit an, ne eum ferri abhorreant vituperatoribus. Ut mea
eligendi disputationi. Ius no tation everti impedit, ei magna quidam
mediocritatem pri.
Legendos perpetua iracundia ne usu, no ius ullum epicurei intellegam,
ad modus epicuri lucilius eam. In unum quaerendum usu. Ne diam paulo
has, ea veri virtute sed. Alia honestatis conclusionemque mea eu, ut
iudico albucius his.
Usu essent probatus eu, sed omnis dolor delicatissimi ex. No qui augue
dissentias dissentiet. Laudem recteque no usu, vel an velit noluisse,
an sed utinam eirmod appetere. Ne mea fuisset inimicus ocurreret. At
vis dicant abhorreant, utinam forensibus nec ne, mei te docendi
consequat. Brute inermis persecuti cum id. Ut ipsum munere propriae
usu, dicit graeco disputando id has.
Eros dolore quaerendum nam ei. Timeam ornatus inciderint pro id. Nec
torquatos sadipscing ei, ancillae molestie per in. Malis principes duo
ea, usu liber postulant ei.
Graece timeam voluptatibus eu eam. Alia probatus quo no, ea scripta
feugiat duo. Congue option meliore ex qui, noster invenire appellantur
ea vel. Eu exerci legendos vel. Consetetur repudiandae vim ut. Vix an
probo minimum, et nam illud falli tempor.
Cum dico signiferumque eu. Sed ut regione maiorum, id veritus insolens
tacimates vix. Eu mel sint tamquam lucilius, duo no oporteat
tacimates. Atqui augue concludaturque vix ei, id mel utroque menandri.
Ad oratio blandit aliquando pro. Vis et dolorum rationibus
philosophia, ad cum nulla molestie. Hinc fuisset adversarium eum et,
ne qui nisl verear saperet, vel te quaestio forensibus. Per odio
option delenit an. Alii placerat has no, in pri nihil platonem
cotidieque. Est ut elit copiosae scaevola, debet tollit maluisset sea
an.
Te sea hinc debet pericula, liber ridens fabulas cu sed, quem mutat
accusam mea et. Elitr labitur albucius et pri, an labore feugait mel.
Velit zril melius usu ea. Ad stet putent interpretaris qui. Mel no
error volumus scripserit. In pro paulo iudico, quo ei dolorem
verterem, affert fabellas dissentiet ea vix.
Vis quot deserunt te. Error aliquid detraxit eu usu, vis alia eruditi
salutatus cu. Est nostrud bonorum an, ei usu alii salutatus. Vel at
nisl primis, eum ex aperiri noluisse reformidans. Ad veri velit
utroque vis, ex equidem detraxit temporibus has.
Inermis appareat usu ne. Eros placerat periculis mea ad, in dictas
pericula pro. Errem postulant at usu, ea nec amet ornatus mentitum. Ad
mazim graeco eum, vel ex percipit volutpat iudicabit, sit ne delicata
interesset. Mel sapientem prodesset abhorreant et, oblique suscipit
eam id.
An maluisset disputando mea, vidit mnesarchum pri et. Malis insolens
inciderint no sea. Ea persius maluisset vix, ne vim appellantur
instructior, consul quidam definiebas pri id. Cum integre feugiat
pericula in, ex sed persius similique, mel ne natum dicit percipitur.
Primis discere ne pri, errem putent definitionem at vis. Ei mel dolore
neglegentur, mei tincidunt percipitur ei. Pro ad simul integre
rationibus. Eu vel alii honestatis definitiones, mea no nonumy
reprehendunt.
Dicta appareat legendos est cu. Eu vel congue dicunt omittam, no vix
adhuc minimum constituam, quot noluisse id mel. Eu quot sale mutat
duo, ex nisl munere invenire duo. Ne nec ullum utamur. Pro alterum
debitis nostrum no, ut vel aliquid vivendo.
Aliquip fierent praesent quo ne, id sit audiam recusabo delicatissimi.
Usu postulant incorrupte cu. At pro dicit tibique intellegam, cibo
dolore impedit id eam, et aeque feugait assentior has. Quando sensibus
nec ex. Possit sensibus pri ad, unum mutat periculis cu vix.
Mundi tibique vix te, duo simul partiendo qualisque id, est at vidit
sonet tempor. No per solet aeterno deseruisse. Petentium salutandi
definiebas pri cu. Munere vivendum est in. Ei justo congue eligendi
vis, modus offendit omittantur te mel.
Integre voluptaria in qui, sit habemus tractatos constituam no. Utinam
melius conceptam est ne, quo in minimum apeirian delicata, ut ius
porro recusabo. Dicant expetenda vix no, ludus scripserit sed ex, eu
his modo nostro. Ut etiam sonet his, quodsi inciderint philosophia te
per. Nullam lobortis eu cum, vix an sonet efficiendi repudiandae. Vis
ad idque fabellas intellegebat.
Eum commodo senserit conclusionemque ex. Sed forensibus sadipscing ut,
mei in facer delicata periculis, sea ne hinc putent cetero. Nec ne
alia corpora invenire, alia prima soleat te cum. Eleifend posidonium
nam at.
Dolorum indoctum cu quo, ex dolor legendos recteque eam, cu pri zril
discere. Nec civibus officiis dissentiunt ex, est te liber ludus
elaboraret. Cum ea fabellas invenire. Ex vim nostrud eripuit
comprehensam, nam te inermis delectus, saepe inermis senserit.
`

View File

@ -665,6 +665,7 @@ var eventHandlers = []string{
// extra are ad-hoc values not covered by any of the lists above.
var extra = []string{
"acronym",
"align",
"annotation",
"annotation-xml",

File diff suppressed because it is too large Load Diff

View File

@ -10,6 +10,7 @@ var testAtomList = []string{
"accept",
"accept-charset",
"accesskey",
"acronym",
"action",
"address",
"align",

View File

@ -4,7 +4,7 @@
package html
// Section 12.2.3.2 of the HTML5 specification says "The following elements
// Section 12.2.4.2 of the HTML5 specification says "The following elements
// have varying levels of special parsing rules".
// https://html.spec.whatwg.org/multipage/syntax.html#the-stack-of-open-elements
var isSpecialElementMap = map[string]bool{

View File

@ -67,7 +67,7 @@ func mathMLTextIntegrationPoint(n *Node) bool {
return false
}
// Section 12.2.5.5.
// Section 12.2.6.5.
var breakout = map[string]bool{
"b": true,
"big": true,
@ -115,7 +115,7 @@ var breakout = map[string]bool{
"var": true,
}
// Section 12.2.5.5.
// Section 12.2.6.5.
var svgTagNameAdjustments = map[string]string{
"altglyph": "altGlyph",
"altglyphdef": "altGlyphDef",
@ -155,7 +155,7 @@ var svgTagNameAdjustments = map[string]string{
"textpath": "textPath",
}
// Section 12.2.5.1
// Section 12.2.6.1
var mathMLAttributeAdjustments = map[string]string{
"definitionurl": "definitionURL",
}

View File

@ -21,9 +21,10 @@ const (
scopeMarkerNode
)
// Section 12.2.3.3 says "scope markers are inserted when entering applet
// elements, buttons, object elements, marquees, table cells, and table
// captions, and are used to prevent formatting from 'leaking'".
// Section 12.2.4.3 says "The markers are inserted when entering applet,
// object, marquee, template, td, th, and caption elements, and are used
// to prevent formatting from "leaking" into applet, object, marquee,
// template, td, th, and caption elements".
var scopeMarker = Node{Type: scopeMarkerNode}
// A Node consists of a NodeType and some Data (tag name for element nodes,

View File

@ -25,12 +25,12 @@ type parser struct {
hasSelfClosingToken bool
// doc is the document root element.
doc *Node
// The stack of open elements (section 12.2.3.2) and active formatting
// elements (section 12.2.3.3).
// The stack of open elements (section 12.2.4.2) and active formatting
// elements (section 12.2.4.3).
oe, afe nodeStack
// Element pointers (section 12.2.3.4).
// Element pointers (section 12.2.4.4).
head, form *Node
// Other parsing state flags (section 12.2.3.5).
// Other parsing state flags (section 12.2.4.5).
scripting, framesetOK bool
// im is the current insertion mode.
im insertionMode
@ -38,7 +38,7 @@ type parser struct {
// or inTableText insertion mode.
originalIM insertionMode
// fosterParenting is whether new elements should be inserted according to
// the foster parenting rules (section 12.2.5.3).
// the foster parenting rules (section 12.2.6.1).
fosterParenting bool
// quirks is whether the parser is operating in "quirks mode."
quirks bool
@ -56,7 +56,7 @@ func (p *parser) top() *Node {
return p.doc
}
// Stop tags for use in popUntil. These come from section 12.2.3.2.
// Stop tags for use in popUntil. These come from section 12.2.4.2.
var (
defaultScopeStopTags = map[string][]a.Atom{
"": {a.Applet, a.Caption, a.Html, a.Table, a.Td, a.Th, a.Marquee, a.Object, a.Template},
@ -79,7 +79,7 @@ const (
// popUntil pops the stack of open elements at the highest element whose tag
// is in matchTags, provided there is no higher element in the scope's stop
// tags (as defined in section 12.2.3.2). It returns whether or not there was
// tags (as defined in section 12.2.4.2). It returns whether or not there was
// such an element. If there was not, popUntil leaves the stack unchanged.
//
// For example, the set of stop tags for table scope is: "html", "table". If
@ -234,7 +234,7 @@ func (p *parser) shouldFosterParent() bool {
}
// fosterParent adds a child node according to the foster parenting rules.
// Section 12.2.5.3, "foster parenting".
// Section 12.2.6.1, "foster parenting".
func (p *parser) fosterParent(n *Node) {
var table, parent, prev *Node
var i int
@ -304,7 +304,7 @@ func (p *parser) addElement() {
})
}
// Section 12.2.3.3.
// Section 12.2.4.3.
func (p *parser) addFormattingElement() {
tagAtom, attr := p.tok.DataAtom, p.tok.Attr
p.addElement()
@ -351,7 +351,7 @@ findIdenticalElements:
p.afe = append(p.afe, p.top())
}
// Section 12.2.3.3.
// Section 12.2.4.3.
func (p *parser) clearActiveFormattingElements() {
for {
n := p.afe.pop()
@ -361,7 +361,7 @@ func (p *parser) clearActiveFormattingElements() {
}
}
// Section 12.2.3.3.
// Section 12.2.4.3.
func (p *parser) reconstructActiveFormattingElements() {
n := p.afe.top()
if n == nil {
@ -390,12 +390,12 @@ func (p *parser) reconstructActiveFormattingElements() {
}
}
// Section 12.2.4.
// Section 12.2.5.
func (p *parser) acknowledgeSelfClosingTag() {
p.hasSelfClosingToken = false
}
// An insertion mode (section 12.2.3.1) is the state transition function from
// An insertion mode (section 12.2.4.1) is the state transition function from
// a particular state in the HTML5 parser's state machine. It updates the
// parser's fields depending on parser.tok (where ErrorToken means EOF).
// It returns whether the token was consumed.
@ -403,7 +403,7 @@ type insertionMode func(*parser) bool
// setOriginalIM sets the insertion mode to return to after completing a text or
// inTableText insertion mode.
// Section 12.2.3.1, "using the rules for".
// Section 12.2.4.1, "using the rules for".
func (p *parser) setOriginalIM() {
if p.originalIM != nil {
panic("html: bad parser state: originalIM was set twice")
@ -411,7 +411,7 @@ func (p *parser) setOriginalIM() {
p.originalIM = p.im
}
// Section 12.2.3.1, "reset the insertion mode".
// Section 12.2.4.1, "reset the insertion mode".
func (p *parser) resetInsertionMode() {
for i := len(p.oe) - 1; i >= 0; i-- {
n := p.oe[i]
@ -452,7 +452,7 @@ func (p *parser) resetInsertionMode() {
const whitespace = " \t\r\n\f"
// Section 12.2.5.4.1.
// Section 12.2.6.4.1.
func initialIM(p *parser) bool {
switch p.tok.Type {
case TextToken:
@ -479,7 +479,7 @@ func initialIM(p *parser) bool {
return false
}
// Section 12.2.5.4.2.
// Section 12.2.6.4.2.
func beforeHTMLIM(p *parser) bool {
switch p.tok.Type {
case DoctypeToken:
@ -517,7 +517,7 @@ func beforeHTMLIM(p *parser) bool {
return false
}
// Section 12.2.5.4.3.
// Section 12.2.6.4.3.
func beforeHeadIM(p *parser) bool {
switch p.tok.Type {
case TextToken:
@ -560,7 +560,7 @@ func beforeHeadIM(p *parser) bool {
return false
}
// Section 12.2.5.4.4.
// Section 12.2.6.4.4.
func inHeadIM(p *parser) bool {
switch p.tok.Type {
case TextToken:
@ -622,7 +622,7 @@ func inHeadIM(p *parser) bool {
return false
}
// Section 12.2.5.4.6.
// Section 12.2.6.4.6.
func afterHeadIM(p *parser) bool {
switch p.tok.Type {
case TextToken:
@ -697,7 +697,7 @@ func copyAttributes(dst *Node, src Token) {
}
}
// Section 12.2.5.4.7.
// Section 12.2.6.4.7.
func inBodyIM(p *parser) bool {
switch p.tok.Type {
case TextToken:
@ -1160,7 +1160,7 @@ func (p *parser) inBodyEndTagFormatting(tagAtom a.Atom) {
}
// inBodyEndTagOther performs the "any other end tag" algorithm for inBodyIM.
// "Any other end tag" handling from 12.2.5.5 The rules for parsing tokens in foreign content
// "Any other end tag" handling from 12.2.6.5 The rules for parsing tokens in foreign content
// https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inforeign
func (p *parser) inBodyEndTagOther(tagAtom a.Atom) {
for i := len(p.oe) - 1; i >= 0; i-- {
@ -1174,7 +1174,7 @@ func (p *parser) inBodyEndTagOther(tagAtom a.Atom) {
}
}
// Section 12.2.5.4.8.
// Section 12.2.6.4.8.
func textIM(p *parser) bool {
switch p.tok.Type {
case ErrorToken:
@ -1203,7 +1203,7 @@ func textIM(p *parser) bool {
return p.tok.Type == EndTagToken
}
// Section 12.2.5.4.9.
// Section 12.2.6.4.9.
func inTableIM(p *parser) bool {
switch p.tok.Type {
case ErrorToken:
@ -1309,7 +1309,7 @@ func inTableIM(p *parser) bool {
return inBodyIM(p)
}
// Section 12.2.5.4.11.
// Section 12.2.6.4.11.
func inCaptionIM(p *parser) bool {
switch p.tok.Type {
case StartTagToken:
@ -1355,7 +1355,7 @@ func inCaptionIM(p *parser) bool {
return inBodyIM(p)
}
// Section 12.2.5.4.12.
// Section 12.2.6.4.12.
func inColumnGroupIM(p *parser) bool {
switch p.tok.Type {
case TextToken:
@ -1408,7 +1408,7 @@ func inColumnGroupIM(p *parser) bool {
return true
}
// Section 12.2.5.4.13.
// Section 12.2.6.4.13.
func inTableBodyIM(p *parser) bool {
switch p.tok.Type {
case StartTagToken:
@ -1460,7 +1460,7 @@ func inTableBodyIM(p *parser) bool {
return inTableIM(p)
}
// Section 12.2.5.4.14.
// Section 12.2.6.4.14.
func inRowIM(p *parser) bool {
switch p.tok.Type {
case StartTagToken:
@ -1511,7 +1511,7 @@ func inRowIM(p *parser) bool {
return inTableIM(p)
}
// Section 12.2.5.4.15.
// Section 12.2.6.4.15.
func inCellIM(p *parser) bool {
switch p.tok.Type {
case StartTagToken:
@ -1560,7 +1560,7 @@ func inCellIM(p *parser) bool {
return inBodyIM(p)
}
// Section 12.2.5.4.16.
// Section 12.2.6.4.16.
func inSelectIM(p *parser) bool {
switch p.tok.Type {
case ErrorToken:
@ -1632,7 +1632,7 @@ func inSelectIM(p *parser) bool {
return true
}
// Section 12.2.5.4.17.
// Section 12.2.6.4.17.
func inSelectInTableIM(p *parser) bool {
switch p.tok.Type {
case StartTagToken, EndTagToken:
@ -1650,7 +1650,7 @@ func inSelectInTableIM(p *parser) bool {
return inSelectIM(p)
}
// Section 12.2.5.4.18.
// Section 12.2.6.4.19.
func afterBodyIM(p *parser) bool {
switch p.tok.Type {
case ErrorToken:
@ -1688,7 +1688,7 @@ func afterBodyIM(p *parser) bool {
return false
}
// Section 12.2.5.4.19.
// Section 12.2.6.4.20.
func inFramesetIM(p *parser) bool {
switch p.tok.Type {
case CommentToken:
@ -1738,7 +1738,7 @@ func inFramesetIM(p *parser) bool {
return true
}
// Section 12.2.5.4.20.
// Section 12.2.6.4.21.
func afterFramesetIM(p *parser) bool {
switch p.tok.Type {
case CommentToken:
@ -1777,7 +1777,7 @@ func afterFramesetIM(p *parser) bool {
return true
}
// Section 12.2.5.4.21.
// Section 12.2.6.4.22.
func afterAfterBodyIM(p *parser) bool {
switch p.tok.Type {
case ErrorToken:
@ -1806,7 +1806,7 @@ func afterAfterBodyIM(p *parser) bool {
return false
}
// Section 12.2.5.4.22.
// Section 12.2.6.4.23.
func afterAfterFramesetIM(p *parser) bool {
switch p.tok.Type {
case CommentToken:
@ -1844,7 +1844,7 @@ func afterAfterFramesetIM(p *parser) bool {
const whitespaceOrNUL = whitespace + "\x00"
// Section 12.2.5.5.
// Section 12.2.6.5
func parseForeignContent(p *parser) bool {
switch p.tok.Type {
case TextToken:
@ -1924,7 +1924,7 @@ func parseForeignContent(p *parser) bool {
return true
}
// Section 12.2.5.
// Section 12.2.6.
func (p *parser) inForeignContent() bool {
if len(p.oe) == 0 {
return false

View File

@ -5,7 +5,7 @@
package http2
// A list of the possible cipher suite ids. Taken from
// http://www.iana.org/assignments/tls-parameters/tls-parameters.txt
// https://www.iana.org/assignments/tls-parameters/tls-parameters.txt
const (
cipher_TLS_NULL_WITH_NULL_NULL uint16 = 0x0000

View File

@ -3,3 +3,4 @@ h2demo.linux
client-id.dat
client-secret.dat
token.dat
ca-certificates.crt

11
vendor/golang.org/x/net/http2/h2demo/Dockerfile generated vendored Normal file
View File

@ -0,0 +1,11 @@
# Copyright 2018 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
FROM scratch
LABEL maintainer "golang-dev@googlegroups.com"
COPY ca-certificates.crt /etc/ssl/certs/
COPY h2demo /
ENTRYPOINT ["/h2demo", "-prod"]

134
vendor/golang.org/x/net/http2/h2demo/Dockerfile.0 generated vendored Normal file
View File

@ -0,0 +1,134 @@
# Copyright 2018 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
FROM golang:1.9
LABEL maintainer "golang-dev@googlegroups.com"
ENV CGO_ENABLED=0
# BEGIN deps (run `make update-deps` to update)
# Repo cloud.google.com/go at 1d0c2da (2018-01-30)
ENV REV=1d0c2da40456a9b47f5376165f275424acc15c09
RUN go get -d cloud.google.com/go/compute/metadata `#and 6 other pkgs` &&\
(cd /go/src/cloud.google.com/go && (git cat-file -t $REV 2>/dev/null || git fetch -q origin $REV) && git reset --hard $REV)
# Repo github.com/golang/protobuf at 9255415 (2018-01-25)
ENV REV=925541529c1fa6821df4e44ce2723319eb2be768
RUN go get -d github.com/golang/protobuf/proto `#and 6 other pkgs` &&\
(cd /go/src/github.com/golang/protobuf && (git cat-file -t $REV 2>/dev/null || git fetch -q origin $REV) && git reset --hard $REV)
# Repo github.com/googleapis/gax-go at 317e000 (2017-09-15)
ENV REV=317e0006254c44a0ac427cc52a0e083ff0b9622f
RUN go get -d github.com/googleapis/gax-go &&\
(cd /go/src/github.com/googleapis/gax-go && (git cat-file -t $REV 2>/dev/null || git fetch -q origin $REV) && git reset --hard $REV)
# Repo go4.org at 034d17a (2017-05-25)
ENV REV=034d17a462f7b2dcd1a4a73553ec5357ff6e6c6e
RUN go get -d go4.org/syncutil/singleflight &&\
(cd /go/src/go4.org && (git cat-file -t $REV 2>/dev/null || git fetch -q origin $REV) && git reset --hard $REV)
# Repo golang.org/x/build at 8aa9ee0 (2018-02-01)
ENV REV=8aa9ee0e557fd49c14113e5ba106e13a5b455460
RUN go get -d golang.org/x/build/autocertcache &&\
(cd /go/src/golang.org/x/build && (git cat-file -t $REV 2>/dev/null || git fetch -q origin $REV) && git reset --hard $REV)
# Repo golang.org/x/crypto at 1875d0a (2018-01-27)
ENV REV=1875d0a70c90e57f11972aefd42276df65e895b9
RUN go get -d golang.org/x/crypto/acme `#and 2 other pkgs` &&\
(cd /go/src/golang.org/x/crypto && (git cat-file -t $REV 2>/dev/null || git fetch -q origin $REV) && git reset --hard $REV)
# Repo golang.org/x/oauth2 at 30785a2 (2018-01-04)
ENV REV=30785a2c434e431ef7c507b54617d6a951d5f2b4
RUN go get -d golang.org/x/oauth2 `#and 5 other pkgs` &&\
(cd /go/src/golang.org/x/oauth2 && (git cat-file -t $REV 2>/dev/null || git fetch -q origin $REV) && git reset --hard $REV)
# Repo golang.org/x/text at e19ae14 (2017-12-27)
ENV REV=e19ae1496984b1c655b8044a65c0300a3c878dd3
RUN go get -d golang.org/x/text/secure/bidirule `#and 4 other pkgs` &&\
(cd /go/src/golang.org/x/text && (git cat-file -t $REV 2>/dev/null || git fetch -q origin $REV) && git reset --hard $REV)
# Repo google.golang.org/api at 7d0e2d3 (2018-01-30)
ENV REV=7d0e2d350555821bef5a5b8aecf0d12cc1def633
RUN go get -d google.golang.org/api/gensupport `#and 9 other pkgs` &&\
(cd /go/src/google.golang.org/api && (git cat-file -t $REV 2>/dev/null || git fetch -q origin $REV) && git reset --hard $REV)
# Repo google.golang.org/genproto at 4eb30f4 (2018-01-25)
ENV REV=4eb30f4778eed4c258ba66527a0d4f9ec8a36c45
RUN go get -d google.golang.org/genproto/googleapis/api/annotations `#and 3 other pkgs` &&\
(cd /go/src/google.golang.org/genproto && (git cat-file -t $REV 2>/dev/null || git fetch -q origin $REV) && git reset --hard $REV)
# Repo google.golang.org/grpc at 0bd008f (2018-01-25)
ENV REV=0bd008f5fadb62d228f12b18d016709e8139a7af
RUN go get -d google.golang.org/grpc `#and 23 other pkgs` &&\
(cd /go/src/google.golang.org/grpc && (git cat-file -t $REV 2>/dev/null || git fetch -q origin $REV) && git reset --hard $REV)
# Optimization to speed up iterative development, not necessary for correctness:
RUN go install cloud.google.com/go/compute/metadata \
cloud.google.com/go/iam \
cloud.google.com/go/internal \
cloud.google.com/go/internal/optional \
cloud.google.com/go/internal/version \
cloud.google.com/go/storage \
github.com/golang/protobuf/proto \
github.com/golang/protobuf/protoc-gen-go/descriptor \
github.com/golang/protobuf/ptypes \
github.com/golang/protobuf/ptypes/any \
github.com/golang/protobuf/ptypes/duration \
github.com/golang/protobuf/ptypes/timestamp \
github.com/googleapis/gax-go \
go4.org/syncutil/singleflight \
golang.org/x/build/autocertcache \
golang.org/x/crypto/acme \
golang.org/x/crypto/acme/autocert \
golang.org/x/oauth2 \
golang.org/x/oauth2/google \
golang.org/x/oauth2/internal \
golang.org/x/oauth2/jws \
golang.org/x/oauth2/jwt \
golang.org/x/text/secure/bidirule \
golang.org/x/text/transform \
golang.org/x/text/unicode/bidi \
golang.org/x/text/unicode/norm \
google.golang.org/api/gensupport \
google.golang.org/api/googleapi \
google.golang.org/api/googleapi/internal/uritemplates \
google.golang.org/api/googleapi/transport \
google.golang.org/api/internal \
google.golang.org/api/iterator \
google.golang.org/api/option \
google.golang.org/api/storage/v1 \
google.golang.org/api/transport/http \
google.golang.org/genproto/googleapis/api/annotations \
google.golang.org/genproto/googleapis/iam/v1 \
google.golang.org/genproto/googleapis/rpc/status \
google.golang.org/grpc \
google.golang.org/grpc/balancer \
google.golang.org/grpc/balancer/base \
google.golang.org/grpc/balancer/roundrobin \
google.golang.org/grpc/codes \
google.golang.org/grpc/connectivity \
google.golang.org/grpc/credentials \
google.golang.org/grpc/encoding \
google.golang.org/grpc/encoding/proto \
google.golang.org/grpc/grpclb/grpc_lb_v1/messages \
google.golang.org/grpc/grpclog \
google.golang.org/grpc/internal \
google.golang.org/grpc/keepalive \
google.golang.org/grpc/metadata \
google.golang.org/grpc/naming \
google.golang.org/grpc/peer \
google.golang.org/grpc/resolver \
google.golang.org/grpc/resolver/dns \
google.golang.org/grpc/resolver/passthrough \
google.golang.org/grpc/stats \
google.golang.org/grpc/status \
google.golang.org/grpc/tap \
google.golang.org/grpc/transport
# END deps
COPY . /go/src/golang.org/x/net/
RUN go install -tags "h2demo netgo" -ldflags "-linkmode=external -extldflags '-static -pthread'" golang.org/x/net/http2/h2demo

View File

@ -1,8 +1,55 @@
h2demo.linux: h2demo.go
GOOS=linux go build --tags=h2demo -o h2demo.linux .
# Copyright 2018 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
MUTABLE_VERSION ?= latest
VERSION ?= $(shell git rev-parse --short HEAD)
IMAGE_STAGING := gcr.io/go-dashboard-dev/h2demo
IMAGE_PROD := gcr.io/symbolic-datum-552/h2demo
DOCKER_IMAGE_build0=build0/h2demo:latest
DOCKER_CTR_build0=h2demo-build0
build0: *.go Dockerfile.0
docker build --force-rm -f Dockerfile.0 --tag=$(DOCKER_IMAGE_build0) ../..
h2demo: build0
docker create --name $(DOCKER_CTR_build0) $(DOCKER_IMAGE_build0)
docker cp $(DOCKER_CTR_build0):/go/bin/$@ $@
docker rm $(DOCKER_CTR_build0)
ca-certificates.crt:
docker create --name $(DOCKER_CTR_build0) $(DOCKER_IMAGE_build0)
docker cp $(DOCKER_CTR_build0):/etc/ssl/certs/$@ $@
docker rm $(DOCKER_CTR_build0)
update-deps:
go install golang.org/x/build/cmd/gitlock
gitlock --update=Dockerfile.0 --ignore=golang.org/x/net --tags=h2demo golang.org/x/net/http2/h2demo
docker-prod: Dockerfile h2demo ca-certificates.crt
docker build --force-rm --tag=$(IMAGE_PROD):$(VERSION) .
docker tag $(IMAGE_PROD):$(VERSION) $(IMAGE_PROD):$(MUTABLE_VERSION)
docker-staging: Dockerfile h2demo ca-certificates.crt
docker build --force-rm --tag=$(IMAGE_STAGING):$(VERSION) .
docker tag $(IMAGE_STAGING):$(VERSION) $(IMAGE_STAGING):$(MUTABLE_VERSION)
push-prod: docker-prod
gcloud docker -- push $(IMAGE_PROD):$(MUTABLE_VERSION)
gcloud docker -- push $(IMAGE_PROD):$(VERSION)
push-staging: docker-staging
gcloud docker -- push $(IMAGE_STAGING):$(MUTABLE_VERSION)
gcloud docker -- push $(IMAGE_STAGING):$(VERSION)
deploy-prod: push-prod
kubectl set image deployment/h2demo-deployment h2demo=$(IMAGE_PROD):$(VERSION)
deploy-staging: push-staging
kubectl set image deployment/h2demo-deployment h2demo=$(IMAGE_STAGING):$(VERSION)
.PHONY: clean
clean:
$(RM) h2demo
$(RM) ca-certificates.crt
FORCE:
upload: FORCE
go install golang.org/x/build/cmd/upload
upload --verbose --osarch=linux-amd64 --tags=h2demo --file=go:golang.org/x/net/http2/h2demo --public http2-demo-server-tls/h2demo

View File

@ -0,0 +1,28 @@
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: h2demo-deployment
spec:
replicas: 1
template:
metadata:
labels:
app: h2demo
annotations:
container.seccomp.security.alpha.kubernetes.io/h2demo: docker/default
container.apparmor.security.beta.kubernetes.io/h2demo: runtime/default
spec:
containers:
- name: h2demo
image: gcr.io/symbolic-datum-552/h2demo:latest
imagePullPolicy: Always
command: ["/h2demo", "-prod"]
ports:
- containerPort: 80
- containerPort: 443
resources:
requests:
cpu: "1"
memory: "1Gi"
limits:
memory: "2Gi"

View File

@ -8,6 +8,7 @@ package main
import (
"bytes"
"context"
"crypto/tls"
"flag"
"fmt"
@ -19,7 +20,6 @@ import (
"log"
"net"
"net/http"
"os"
"path"
"regexp"
"runtime"
@ -28,7 +28,9 @@ import (
"sync"
"time"
"cloud.google.com/go/storage"
"go4.org/syncutil/singleflight"
"golang.org/x/build/autocertcache"
"golang.org/x/crypto/acme/autocert"
"golang.org/x/net/http2"
)
@ -426,19 +428,10 @@ func httpHost() string {
}
}
func serveProdTLS() error {
const cacheDir = "/var/cache/autocert"
if err := os.MkdirAll(cacheDir, 0700); err != nil {
return err
}
m := autocert.Manager{
Cache: autocert.DirCache(cacheDir),
Prompt: autocert.AcceptTOS,
HostPolicy: autocert.HostWhitelist("http2.golang.org"),
}
func serveProdTLS(autocertManager *autocert.Manager) error {
srv := &http.Server{
TLSConfig: &tls.Config{
GetCertificate: m.GetCertificate,
GetCertificate: autocertManager.GetCertificate,
},
}
http2.ConfigureServer(srv, &http2.Server{
@ -468,9 +461,21 @@ func (ln tcpKeepAliveListener) Accept() (c net.Conn, err error) {
}
func serveProd() error {
log.Printf("running in production mode")
storageClient, err := storage.NewClient(context.Background())
if err != nil {
log.Fatalf("storage.NewClient: %v", err)
}
autocertManager := &autocert.Manager{
Prompt: autocert.AcceptTOS,
HostPolicy: autocert.HostWhitelist("http2.golang.org"),
Cache: autocertcache.NewGoogleCloudStorageCache(storageClient, "golang-h2demo-autocert"),
}
errc := make(chan error, 2)
go func() { errc <- http.ListenAndServe(":80", nil) }()
go func() { errc <- serveProdTLS() }()
go func() { errc <- http.ListenAndServe(":80", autocertManager.HTTPHandler(http.DefaultServeMux)) }()
go func() { errc <- serveProdTLS(autocertManager) }()
return <-errc
}

17
vendor/golang.org/x/net/http2/h2demo/service.yaml generated vendored Normal file
View File

@ -0,0 +1,17 @@
apiVersion: v1
kind: Service
metadata:
name: h2demo
spec:
externalTrafficPolicy: Local
ports:
- port: 80
targetPort: 80
name: http
- port: 443
targetPort: 443
name: https
selector:
app: h2demo
type: LoadBalancer
loadBalancerIP: 130.211.116.44

View File

@ -206,7 +206,7 @@ func appendVarInt(dst []byte, n byte, i uint64) []byte {
}
// appendHpackString appends s, as encoded in "String Literal"
// representation, to dst and returns the the extended buffer.
// representation, to dst and returns the extended buffer.
//
// s will be encoded in Huffman codes only when it produces strictly
// shorter byte string.

View File

@ -312,7 +312,7 @@ func mustUint31(v int32) uint32 {
}
// bodyAllowedForStatus reports whether a given response status code
// permits a body. See RFC 2616, section 4.4.
// permits a body. See RFC 7230, section 3.3.
func bodyAllowedForStatus(status int) bool {
switch {
case status >= 100 && status <= 199:

View File

@ -406,7 +406,7 @@ func (s *Server) ServeConn(c net.Conn, opts *ServeConnOpts) {
// addresses during development.
//
// TODO: optionally enforce? Or enforce at the time we receive
// a new request, and verify the the ServerName matches the :authority?
// a new request, and verify the ServerName matches the :authority?
// But that precludes proxy situations, perhaps.
//
// So for now, do nothing here again.
@ -2285,7 +2285,7 @@ func (rws *responseWriterState) hasTrailers() bool { return len(rws.trailers) !=
func (rws *responseWriterState) declareTrailer(k string) {
k = http.CanonicalHeaderKey(k)
if !ValidTrailerHeader(k) {
// Forbidden by RFC 2616 14.40.
// Forbidden by RFC 7230, section 4.1.2.
rws.conn.logf("ignoring invalid trailer %q", k)
return
}
@ -2406,7 +2406,7 @@ const TrailerPrefix = "Trailer:"
// after the header has already been flushed. Because the Go
// ResponseWriter interface has no way to set Trailers (only the
// Header), and because we didn't want to expand the ResponseWriter
// interface, and because nobody used trailers, and because RFC 2616
// interface, and because nobody used trailers, and because RFC 7230
// says you SHOULD (but not must) predeclare any trailers in the
// header, the official ResponseWriter rules said trailers in Go must
// be predeclared, and then we reuse the same ResponseWriter.Header()
@ -2790,7 +2790,7 @@ func (sc *serverConn) startPush(msg *startPushRequest) {
}
// foreachHeaderElement splits v according to the "#rule" construction
// in RFC 2616 section 2.1 and calls fn for each non-empty element.
// in RFC 7230 section 7 and calls fn for each non-empty element.
func foreachHeaderElement(v string, fn func(string)) {
v = textproto.TrimString(v)
if v == "" {

View File

@ -2877,9 +2877,9 @@ func testServerWritesTrailers(t *testing.T, withFlush bool) {
w.Header().Set("Trailer:post-header-trailer2", "hi2")
w.Header().Set("Trailer:Range", "invalid")
w.Header().Set("Trailer:Foo\x01Bogus", "invalid")
w.Header().Set("Transfer-Encoding", "should not be included; Forbidden by RFC 2616 14.40")
w.Header().Set("Content-Length", "should not be included; Forbidden by RFC 2616 14.40")
w.Header().Set("Trailer", "should not be included; Forbidden by RFC 2616 14.40")
w.Header().Set("Transfer-Encoding", "should not be included; Forbidden by RFC 7230 4.1.2")
w.Header().Set("Content-Length", "should not be included; Forbidden by RFC 7230 4.1.2")
w.Header().Set("Trailer", "should not be included; Forbidden by RFC 7230 4.1.2")
return nil
}, func(st *serverTester) {
getSlash(st)
@ -2971,7 +2971,7 @@ func BenchmarkServerGets(b *testing.B) {
defer st.Close()
st.greet()
// Give the server quota to reply. (plus it has the the 64KB)
// Give the server quota to reply. (plus it has the 64KB)
if err := st.fr.WriteWindowUpdate(0, uint32(b.N*len(msg))); err != nil {
b.Fatal(err)
}
@ -3009,7 +3009,7 @@ func BenchmarkServerPosts(b *testing.B) {
defer st.Close()
st.greet()
// Give the server quota to reply. (plus it has the the 64KB)
// Give the server quota to reply. (plus it has the 64KB)
if err := st.fr.WriteWindowUpdate(0, uint32(b.N*len(msg))); err != nil {
b.Fatal(err)
}
@ -3316,7 +3316,7 @@ func BenchmarkServer_GetRequest(b *testing.B) {
defer st.Close()
st.greet()
// Give the server quota to reply. (plus it has the the 64KB)
// Give the server quota to reply. (plus it has the 64KB)
if err := st.fr.WriteWindowUpdate(0, uint32(b.N*len(msg))); err != nil {
b.Fatal(err)
}
@ -3347,7 +3347,7 @@ func BenchmarkServer_PostRequest(b *testing.B) {
})
defer st.Close()
st.greet()
// Give the server quota to reply. (plus it has the the 64KB)
// Give the server quota to reply. (plus it has the 64KB)
if err := st.fr.WriteWindowUpdate(0, uint32(b.N*len(msg))); err != nil {
b.Fatal(err)
}

View File

@ -1693,7 +1693,7 @@ func TestTransportChecksResponseHeaderListSize(t *testing.T) {
ct.run()
}
// Test that the the Transport returns a typed error from Response.Body.Read calls
// Test that the Transport returns a typed error from Response.Body.Read calls
// when the server sends an error. (here we use a panic, since that should generate
// a stream error, but others like cancel should be similar)
func TestTransportBodyReadErrorType(t *testing.T) {

274
vendor/golang.org/x/net/icmp/diag_test.go generated vendored Normal file
View File

@ -0,0 +1,274 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package icmp_test
import (
"errors"
"fmt"
"net"
"os"
"runtime"
"sync"
"testing"
"time"
"golang.org/x/net/icmp"
"golang.org/x/net/internal/iana"
"golang.org/x/net/internal/nettest"
"golang.org/x/net/ipv4"
"golang.org/x/net/ipv6"
)
type diagTest struct {
network, address string
protocol int
m icmp.Message
}
func TestDiag(t *testing.T) {
if testing.Short() {
t.Skip("avoid external network")
}
t.Run("Ping/NonPrivileged", func(t *testing.T) {
switch runtime.GOOS {
case "darwin":
case "linux":
t.Log("you may need to adjust the net.ipv4.ping_group_range kernel state")
default:
t.Logf("not supported on %s", runtime.GOOS)
return
}
for i, dt := range []diagTest{
{
"udp4", "0.0.0.0", iana.ProtocolICMP,
icmp.Message{
Type: ipv4.ICMPTypeEcho, Code: 0,
Body: &icmp.Echo{
ID: os.Getpid() & 0xffff,
Data: []byte("HELLO-R-U-THERE"),
},
},
},
{
"udp6", "::", iana.ProtocolIPv6ICMP,
icmp.Message{
Type: ipv6.ICMPTypeEchoRequest, Code: 0,
Body: &icmp.Echo{
ID: os.Getpid() & 0xffff,
Data: []byte("HELLO-R-U-THERE"),
},
},
},
} {
if err := doDiag(dt, i); err != nil {
t.Error(err)
}
}
})
t.Run("Ping/Privileged", func(t *testing.T) {
if m, ok := nettest.SupportsRawIPSocket(); !ok {
t.Skip(m)
}
for i, dt := range []diagTest{
{
"ip4:icmp", "0.0.0.0", iana.ProtocolICMP,
icmp.Message{
Type: ipv4.ICMPTypeEcho, Code: 0,
Body: &icmp.Echo{
ID: os.Getpid() & 0xffff,
Data: []byte("HELLO-R-U-THERE"),
},
},
},
{
"ip6:ipv6-icmp", "::", iana.ProtocolIPv6ICMP,
icmp.Message{
Type: ipv6.ICMPTypeEchoRequest, Code: 0,
Body: &icmp.Echo{
ID: os.Getpid() & 0xffff,
Data: []byte("HELLO-R-U-THERE"),
},
},
},
} {
if err := doDiag(dt, i); err != nil {
t.Error(err)
}
}
})
t.Run("Probe/Privileged", func(t *testing.T) {
if m, ok := nettest.SupportsRawIPSocket(); !ok {
t.Skip(m)
}
for i, dt := range []diagTest{
{
"ip4:icmp", "0.0.0.0", iana.ProtocolICMP,
icmp.Message{
Type: ipv4.ICMPTypeExtendedEchoRequest, Code: 0,
Body: &icmp.ExtendedEchoRequest{
ID: os.Getpid() & 0xffff,
Local: true,
Extensions: []icmp.Extension{
&icmp.InterfaceIdent{
Class: 3, Type: 1,
Name: "doesnotexist",
},
},
},
},
},
{
"ip6:ipv6-icmp", "::", iana.ProtocolIPv6ICMP,
icmp.Message{
Type: ipv6.ICMPTypeExtendedEchoRequest, Code: 0,
Body: &icmp.ExtendedEchoRequest{
ID: os.Getpid() & 0xffff,
Local: true,
Extensions: []icmp.Extension{
&icmp.InterfaceIdent{
Class: 3, Type: 1,
Name: "doesnotexist",
},
},
},
},
},
} {
if err := doDiag(dt, i); err != nil {
t.Error(err)
}
}
})
}
func doDiag(dt diagTest, seq int) error {
c, err := icmp.ListenPacket(dt.network, dt.address)
if err != nil {
return err
}
defer c.Close()
dst, err := googleAddr(c, dt.protocol)
if err != nil {
return err
}
if dt.network != "udp6" && dt.protocol == iana.ProtocolIPv6ICMP {
var f ipv6.ICMPFilter
f.SetAll(true)
f.Accept(ipv6.ICMPTypeDestinationUnreachable)
f.Accept(ipv6.ICMPTypePacketTooBig)
f.Accept(ipv6.ICMPTypeTimeExceeded)
f.Accept(ipv6.ICMPTypeParameterProblem)
f.Accept(ipv6.ICMPTypeEchoReply)
f.Accept(ipv6.ICMPTypeExtendedEchoReply)
if err := c.IPv6PacketConn().SetICMPFilter(&f); err != nil {
return err
}
}
switch m := dt.m.Body.(type) {
case *icmp.Echo:
m.Seq = 1 << uint(seq)
case *icmp.ExtendedEchoRequest:
m.Seq = 1 << uint(seq)
}
wb, err := dt.m.Marshal(nil)
if err != nil {
return err
}
if n, err := c.WriteTo(wb, dst); err != nil {
return err
} else if n != len(wb) {
return fmt.Errorf("got %v; want %v", n, len(wb))
}
rb := make([]byte, 1500)
if err := c.SetReadDeadline(time.Now().Add(3 * time.Second)); err != nil {
return err
}
n, peer, err := c.ReadFrom(rb)
if err != nil {
return err
}
rm, err := icmp.ParseMessage(dt.protocol, rb[:n])
if err != nil {
return err
}
switch {
case dt.m.Type == ipv4.ICMPTypeEcho && rm.Type == ipv4.ICMPTypeEchoReply:
fallthrough
case dt.m.Type == ipv6.ICMPTypeEchoRequest && rm.Type == ipv6.ICMPTypeEchoReply:
fallthrough
case dt.m.Type == ipv4.ICMPTypeExtendedEchoRequest && rm.Type == ipv4.ICMPTypeExtendedEchoReply:
fallthrough
case dt.m.Type == ipv6.ICMPTypeExtendedEchoRequest && rm.Type == ipv6.ICMPTypeExtendedEchoReply:
return nil
default:
return fmt.Errorf("got %+v from %v; want echo reply or extended echo reply", rm, peer)
}
}
func googleAddr(c *icmp.PacketConn, protocol int) (net.Addr, error) {
host := "ipv4.google.com"
if protocol == iana.ProtocolIPv6ICMP {
host = "ipv6.google.com"
}
ips, err := net.LookupIP(host)
if err != nil {
return nil, err
}
netaddr := func(ip net.IP) (net.Addr, error) {
switch c.LocalAddr().(type) {
case *net.UDPAddr:
return &net.UDPAddr{IP: ip}, nil
case *net.IPAddr:
return &net.IPAddr{IP: ip}, nil
default:
return nil, errors.New("neither UDPAddr nor IPAddr")
}
}
if len(ips) > 0 {
return netaddr(ips[0])
}
return nil, errors.New("no A or AAAA record")
}
func TestConcurrentNonPrivilegedListenPacket(t *testing.T) {
if testing.Short() {
t.Skip("avoid external network")
}
switch runtime.GOOS {
case "darwin":
case "linux":
t.Log("you may need to adjust the net.ipv4.ping_group_range kernel state")
default:
t.Skipf("not supported on %s", runtime.GOOS)
}
network, address := "udp4", "127.0.0.1"
if !nettest.SupportsIPv4() {
network, address = "udp6", "::1"
}
const N = 1000
var wg sync.WaitGroup
wg.Add(N)
for i := 0; i < N; i++ {
go func() {
defer wg.Done()
c, err := icmp.ListenPacket(network, address)
if err != nil {
t.Error(err)
return
}
c.Close()
}()
}
wg.Wait()
}

View File

@ -16,24 +16,24 @@ func (p *DstUnreach) Len(proto int) int {
if p == nil {
return 0
}
l, _ := multipartMessageBodyDataLen(proto, p.Data, p.Extensions)
l, _ := multipartMessageBodyDataLen(proto, true, p.Data, p.Extensions)
return 4 + l
}
// Marshal implements the Marshal method of MessageBody interface.
func (p *DstUnreach) Marshal(proto int) ([]byte, error) {
return marshalMultipartMessageBody(proto, p.Data, p.Extensions)
return marshalMultipartMessageBody(proto, true, p.Data, p.Extensions)
}
// parseDstUnreach parses b as an ICMP destination unreachable message
// body.
func parseDstUnreach(proto int, b []byte) (MessageBody, error) {
func parseDstUnreach(proto int, typ Type, b []byte) (MessageBody, error) {
if len(b) < 4 {
return nil, errMessageTooShort
}
p := &DstUnreach{}
var err error
p.Data, p.Extensions, err = parseMultipartMessageBody(proto, b)
p.Data, p.Extensions, err = parseMultipartMessageBody(proto, typ, b)
if err != nil {
return nil, err
}

114
vendor/golang.org/x/net/icmp/echo.go generated vendored
View File

@ -31,7 +31,7 @@ func (p *Echo) Marshal(proto int) ([]byte, error) {
}
// parseEcho parses b as an ICMP echo request or reply message body.
func parseEcho(proto int, b []byte) (MessageBody, error) {
func parseEcho(proto int, _ Type, b []byte) (MessageBody, error) {
bodyLen := len(b)
if bodyLen < 4 {
return nil, errMessageTooShort
@ -43,3 +43,115 @@ func parseEcho(proto int, b []byte) (MessageBody, error) {
}
return p, nil
}
// An ExtendedEchoRequest represents an ICMP extended echo request
// message body.
type ExtendedEchoRequest struct {
ID int // identifier
Seq int // sequence number
Local bool // must be true when identifying by name or index
Extensions []Extension // extensions
}
// Len implements the Len method of MessageBody interface.
func (p *ExtendedEchoRequest) Len(proto int) int {
if p == nil {
return 0
}
l, _ := multipartMessageBodyDataLen(proto, false, nil, p.Extensions)
return 4 + l
}
// Marshal implements the Marshal method of MessageBody interface.
func (p *ExtendedEchoRequest) Marshal(proto int) ([]byte, error) {
b, err := marshalMultipartMessageBody(proto, false, nil, p.Extensions)
if err != nil {
return nil, err
}
bb := make([]byte, 4)
binary.BigEndian.PutUint16(bb[:2], uint16(p.ID))
bb[2] = byte(p.Seq)
if p.Local {
bb[3] |= 0x01
}
bb = append(bb, b...)
return bb, nil
}
// parseExtendedEchoRequest parses b as an ICMP extended echo request
// message body.
func parseExtendedEchoRequest(proto int, typ Type, b []byte) (MessageBody, error) {
if len(b) < 4+4 {
return nil, errMessageTooShort
}
p := &ExtendedEchoRequest{ID: int(binary.BigEndian.Uint16(b[:2])), Seq: int(b[2])}
if b[3]&0x01 != 0 {
p.Local = true
}
var err error
_, p.Extensions, err = parseMultipartMessageBody(proto, typ, b[4:])
if err != nil {
return nil, err
}
return p, nil
}
// An ExtendedEchoReply represents an ICMP extended echo reply message
// body.
type ExtendedEchoReply struct {
ID int // identifier
Seq int // sequence number
State int // 3-bit state working together with Message.Code
Active bool // probed interface is active
IPv4 bool // probed interface runs IPv4
IPv6 bool // probed interface runs IPv6
}
// Len implements the Len method of MessageBody interface.
func (p *ExtendedEchoReply) Len(proto int) int {
if p == nil {
return 0
}
return 4
}
// Marshal implements the Marshal method of MessageBody interface.
func (p *ExtendedEchoReply) Marshal(proto int) ([]byte, error) {
b := make([]byte, 4)
binary.BigEndian.PutUint16(b[:2], uint16(p.ID))
b[2] = byte(p.Seq)
b[3] = byte(p.State<<5) & 0xe0
if p.Active {
b[3] |= 0x04
}
if p.IPv4 {
b[3] |= 0x02
}
if p.IPv6 {
b[3] |= 0x01
}
return b, nil
}
// parseExtendedEchoReply parses b as an ICMP extended echo reply
// message body.
func parseExtendedEchoReply(proto int, _ Type, b []byte) (MessageBody, error) {
if len(b) < 4 {
return nil, errMessageTooShort
}
p := &ExtendedEchoReply{
ID: int(binary.BigEndian.Uint16(b[:2])),
Seq: int(b[2]),
State: int(b[3]) >> 5,
}
if b[3]&0x04 != 0 {
p.Active = true
}
if b[3]&0x02 != 0 {
p.IPv4 = true
}
if b[3]&0x01 != 0 {
p.IPv6 = true
}
return p, nil
}

View File

@ -4,7 +4,12 @@
package icmp
import "encoding/binary"
import (
"encoding/binary"
"golang.org/x/net/ipv4"
"golang.org/x/net/ipv6"
)
// An Extension represents an ICMP extension.
type Extension interface {
@ -38,7 +43,7 @@ func validExtensionHeader(b []byte) bool {
// It will return a list of ICMP extensions and an adjusted length
// attribute that represents the length of the padded original
// datagram field. Otherwise, it returns an error.
func parseExtensions(b []byte, l int) ([]Extension, int, error) {
func parseExtensions(typ Type, b []byte, l int) ([]Extension, int, error) {
// Still a lot of non-RFC 4884 compliant implementations are
// out there. Set the length attribute l to 128 when it looks
// inappropriate for backwards compatibility.
@ -48,20 +53,28 @@ func parseExtensions(b []byte, l int) ([]Extension, int, error) {
// header.
//
// See RFC 4884 for further information.
if 128 > l || l+8 > len(b) {
l = 128
}
if l+8 > len(b) {
return nil, -1, errNoExtension
}
if !validExtensionHeader(b[l:]) {
if l == 128 {
switch typ {
case ipv4.ICMPTypeExtendedEchoRequest, ipv6.ICMPTypeExtendedEchoRequest:
if len(b) < 8 || !validExtensionHeader(b) {
return nil, -1, errNoExtension
}
l = 128
if !validExtensionHeader(b[l:]) {
l = 0
default:
if 128 > l || l+8 > len(b) {
l = 128
}
if l+8 > len(b) {
return nil, -1, errNoExtension
}
if !validExtensionHeader(b[l:]) {
if l == 128 {
return nil, -1, errNoExtension
}
l = 128
if !validExtensionHeader(b[l:]) {
return nil, -1, errNoExtension
}
}
}
var exts []Extension
for b = b[l+4:]; len(b) >= 4; {
@ -82,6 +95,12 @@ func parseExtensions(b []byte, l int) ([]Extension, int, error) {
return nil, -1, err
}
exts = append(exts, ext)
case classInterfaceIdent:
ext, err := parseInterfaceIdent(b[:ol])
if err != nil {
return nil, -1, err
}
exts = append(exts, ext)
}
b = b[ol:]
}

View File

@ -5,253 +5,327 @@
package icmp
import (
"fmt"
"net"
"reflect"
"testing"
"golang.org/x/net/internal/iana"
"golang.org/x/net/ipv4"
"golang.org/x/net/ipv6"
)
var marshalAndParseExtensionTests = []struct {
proto int
hdr []byte
obj []byte
exts []Extension
}{
// MPLS label stack with no label
{
proto: iana.ProtocolICMP,
hdr: []byte{
0x20, 0x00, 0x00, 0x00,
},
obj: []byte{
0x00, 0x04, 0x01, 0x01,
},
exts: []Extension{
&MPLSLabelStack{
Class: classMPLSLabelStack,
Type: typeIncomingMPLSLabelStack,
},
},
},
// MPLS label stack with a single label
{
proto: iana.ProtocolIPv6ICMP,
hdr: []byte{
0x20, 0x00, 0x00, 0x00,
},
obj: []byte{
0x00, 0x08, 0x01, 0x01,
0x03, 0xe8, 0xe9, 0xff,
},
exts: []Extension{
&MPLSLabelStack{
Class: classMPLSLabelStack,
Type: typeIncomingMPLSLabelStack,
Labels: []MPLSLabel{
{
Label: 16014,
TC: 0x4,
S: true,
TTL: 255,
},
},
},
},
},
// MPLS label stack with multiple labels
{
proto: iana.ProtocolICMP,
hdr: []byte{
0x20, 0x00, 0x00, 0x00,
},
obj: []byte{
0x00, 0x0c, 0x01, 0x01,
0x03, 0xe8, 0xde, 0xfe,
0x03, 0xe8, 0xe1, 0xff,
},
exts: []Extension{
&MPLSLabelStack{
Class: classMPLSLabelStack,
Type: typeIncomingMPLSLabelStack,
Labels: []MPLSLabel{
{
Label: 16013,
TC: 0x7,
S: false,
TTL: 254,
},
{
Label: 16014,
TC: 0,
S: true,
TTL: 255,
},
},
},
},
},
// Interface information with no attribute
{
proto: iana.ProtocolICMP,
hdr: []byte{
0x20, 0x00, 0x00, 0x00,
},
obj: []byte{
0x00, 0x04, 0x02, 0x00,
},
exts: []Extension{
&InterfaceInfo{
Class: classInterfaceInfo,
},
},
},
// Interface information with ifIndex and name
{
proto: iana.ProtocolICMP,
hdr: []byte{
0x20, 0x00, 0x00, 0x00,
},
obj: []byte{
0x00, 0x10, 0x02, 0x0a,
0x00, 0x00, 0x00, 0x10,
0x08, byte('e'), byte('n'), byte('1'),
byte('0'), byte('1'), 0x00, 0x00,
},
exts: []Extension{
&InterfaceInfo{
Class: classInterfaceInfo,
Type: 0x0a,
Interface: &net.Interface{
Index: 16,
Name: "en101",
},
},
},
},
// Interface information with ifIndex, IPAddr, name and MTU
{
proto: iana.ProtocolIPv6ICMP,
hdr: []byte{
0x20, 0x00, 0x00, 0x00,
},
obj: []byte{
0x00, 0x28, 0x02, 0x0f,
0x00, 0x00, 0x00, 0x0f,
0x00, 0x02, 0x00, 0x00,
0xfe, 0x80, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01,
0x08, byte('e'), byte('n'), byte('1'),
byte('0'), byte('1'), 0x00, 0x00,
0x00, 0x00, 0x20, 0x00,
},
exts: []Extension{
&InterfaceInfo{
Class: classInterfaceInfo,
Type: 0x0f,
Interface: &net.Interface{
Index: 15,
Name: "en101",
MTU: 8192,
},
Addr: &net.IPAddr{
IP: net.ParseIP("fe80::1"),
Zone: "en101",
},
},
},
},
}
func TestMarshalAndParseExtension(t *testing.T) {
for i, tt := range marshalAndParseExtensionTests {
for j, ext := range tt.exts {
var err error
var b []byte
switch ext := ext.(type) {
case *MPLSLabelStack:
b, err = ext.Marshal(tt.proto)
if err != nil {
t.Errorf("#%v/%v: %v", i, j, err)
fn := func(t *testing.T, proto int, typ Type, hdr, obj []byte, te Extension) error {
b, err := te.Marshal(proto)
if err != nil {
return err
}
if !reflect.DeepEqual(b, obj) {
return fmt.Errorf("got %#v; want %#v", b, obj)
}
switch typ {
case ipv4.ICMPTypeExtendedEchoRequest, ipv6.ICMPTypeExtendedEchoRequest:
exts, l, err := parseExtensions(typ, append(hdr, obj...), 0)
if err != nil {
return err
}
if l != 0 {
return fmt.Errorf("got %d; want 0", l)
}
if !reflect.DeepEqual(exts, []Extension{te}) {
return fmt.Errorf("got %#v; want %#v", exts[0], te)
}
default:
for i, wire := range []struct {
data []byte // original datagram
inlattr int // length of padded original datagram, a hint
outlattr int // length of padded original datagram, a want
err error
}{
{nil, 0, -1, errNoExtension},
{make([]byte, 127), 128, -1, errNoExtension},
{make([]byte, 128), 127, -1, errNoExtension},
{make([]byte, 128), 128, -1, errNoExtension},
{make([]byte, 128), 129, -1, errNoExtension},
{append(make([]byte, 128), append(hdr, obj...)...), 127, 128, nil},
{append(make([]byte, 128), append(hdr, obj...)...), 128, 128, nil},
{append(make([]byte, 128), append(hdr, obj...)...), 129, 128, nil},
{append(make([]byte, 512), append(hdr, obj...)...), 511, -1, errNoExtension},
{append(make([]byte, 512), append(hdr, obj...)...), 512, 512, nil},
{append(make([]byte, 512), append(hdr, obj...)...), 513, -1, errNoExtension},
} {
exts, l, err := parseExtensions(typ, wire.data, wire.inlattr)
if err != wire.err {
return fmt.Errorf("#%d: got %v; want %v", i, err, wire.err)
}
if wire.err != nil {
continue
}
case *InterfaceInfo:
b, err = ext.Marshal(tt.proto)
if err != nil {
t.Errorf("#%v/%v: %v", i, j, err)
continue
if l != wire.outlattr {
return fmt.Errorf("#%d: got %d; want %d", i, l, wire.outlattr)
}
if !reflect.DeepEqual(exts, []Extension{te}) {
return fmt.Errorf("#%d: got %#v; want %#v", i, exts[0], te)
}
}
if !reflect.DeepEqual(b, tt.obj) {
t.Errorf("#%v/%v: got %#v; want %#v", i, j, b, tt.obj)
continue
}
}
for j, wire := range []struct {
data []byte // original datagram
inlattr int // length of padded original datagram, a hint
outlattr int // length of padded original datagram, a want
err error
}{
{nil, 0, -1, errNoExtension},
{make([]byte, 127), 128, -1, errNoExtension},
{make([]byte, 128), 127, -1, errNoExtension},
{make([]byte, 128), 128, -1, errNoExtension},
{make([]byte, 128), 129, -1, errNoExtension},
{append(make([]byte, 128), append(tt.hdr, tt.obj...)...), 127, 128, nil},
{append(make([]byte, 128), append(tt.hdr, tt.obj...)...), 128, 128, nil},
{append(make([]byte, 128), append(tt.hdr, tt.obj...)...), 129, 128, nil},
{append(make([]byte, 512), append(tt.hdr, tt.obj...)...), 511, -1, errNoExtension},
{append(make([]byte, 512), append(tt.hdr, tt.obj...)...), 512, 512, nil},
{append(make([]byte, 512), append(tt.hdr, tt.obj...)...), 513, -1, errNoExtension},
} {
exts, l, err := parseExtensions(wire.data, wire.inlattr)
if err != wire.err {
t.Errorf("#%v/%v: got %v; want %v", i, j, err, wire.err)
continue
}
if wire.err != nil {
continue
}
if l != wire.outlattr {
t.Errorf("#%v/%v: got %v; want %v", i, j, l, wire.outlattr)
}
if !reflect.DeepEqual(exts, tt.exts) {
for j, ext := range exts {
switch ext := ext.(type) {
case *MPLSLabelStack:
want := tt.exts[j].(*MPLSLabelStack)
t.Errorf("#%v/%v: got %#v; want %#v", i, j, ext, want)
case *InterfaceInfo:
want := tt.exts[j].(*InterfaceInfo)
t.Errorf("#%v/%v: got %#v; want %#v", i, j, ext, want)
}
}
continue
}
}
return nil
}
}
var parseInterfaceNameTests = []struct {
b []byte
error
}{
{[]byte{0, 'e', 'n', '0'}, errInvalidExtension},
{[]byte{4, 'e', 'n', '0'}, nil},
{[]byte{7, 'e', 'n', '0', 0xff, 0xff, 0xff, 0xff}, errInvalidExtension},
{[]byte{8, 'e', 'n', '0', 0xff, 0xff, 0xff}, errMessageTooShort},
t.Run("MPLSLabelStack", func(t *testing.T) {
for _, et := range []struct {
proto int
typ Type
hdr []byte
obj []byte
ext Extension
}{
// MPLS label stack with no label
{
proto: iana.ProtocolICMP,
typ: ipv4.ICMPTypeDestinationUnreachable,
hdr: []byte{
0x20, 0x00, 0x00, 0x00,
},
obj: []byte{
0x00, 0x04, 0x01, 0x01,
},
ext: &MPLSLabelStack{
Class: classMPLSLabelStack,
Type: typeIncomingMPLSLabelStack,
},
},
// MPLS label stack with a single label
{
proto: iana.ProtocolIPv6ICMP,
typ: ipv6.ICMPTypeDestinationUnreachable,
hdr: []byte{
0x20, 0x00, 0x00, 0x00,
},
obj: []byte{
0x00, 0x08, 0x01, 0x01,
0x03, 0xe8, 0xe9, 0xff,
},
ext: &MPLSLabelStack{
Class: classMPLSLabelStack,
Type: typeIncomingMPLSLabelStack,
Labels: []MPLSLabel{
{
Label: 16014,
TC: 0x4,
S: true,
TTL: 255,
},
},
},
},
// MPLS label stack with multiple labels
{
proto: iana.ProtocolICMP,
typ: ipv4.ICMPTypeDestinationUnreachable,
hdr: []byte{
0x20, 0x00, 0x00, 0x00,
},
obj: []byte{
0x00, 0x0c, 0x01, 0x01,
0x03, 0xe8, 0xde, 0xfe,
0x03, 0xe8, 0xe1, 0xff,
},
ext: &MPLSLabelStack{
Class: classMPLSLabelStack,
Type: typeIncomingMPLSLabelStack,
Labels: []MPLSLabel{
{
Label: 16013,
TC: 0x7,
S: false,
TTL: 254,
},
{
Label: 16014,
TC: 0,
S: true,
TTL: 255,
},
},
},
},
} {
if err := fn(t, et.proto, et.typ, et.hdr, et.obj, et.ext); err != nil {
t.Error(err)
}
}
})
t.Run("InterfaceInfo", func(t *testing.T) {
for _, et := range []struct {
proto int
typ Type
hdr []byte
obj []byte
ext Extension
}{
// Interface information with no attribute
{
proto: iana.ProtocolICMP,
typ: ipv4.ICMPTypeDestinationUnreachable,
hdr: []byte{
0x20, 0x00, 0x00, 0x00,
},
obj: []byte{
0x00, 0x04, 0x02, 0x00,
},
ext: &InterfaceInfo{
Class: classInterfaceInfo,
},
},
// Interface information with ifIndex and name
{
proto: iana.ProtocolICMP,
typ: ipv4.ICMPTypeDestinationUnreachable,
hdr: []byte{
0x20, 0x00, 0x00, 0x00,
},
obj: []byte{
0x00, 0x10, 0x02, 0x0a,
0x00, 0x00, 0x00, 0x10,
0x08, byte('e'), byte('n'), byte('1'),
byte('0'), byte('1'), 0x00, 0x00,
},
ext: &InterfaceInfo{
Class: classInterfaceInfo,
Type: 0x0a,
Interface: &net.Interface{
Index: 16,
Name: "en101",
},
},
},
// Interface information with ifIndex, IPAddr, name and MTU
{
proto: iana.ProtocolIPv6ICMP,
typ: ipv6.ICMPTypeDestinationUnreachable,
hdr: []byte{
0x20, 0x00, 0x00, 0x00,
},
obj: []byte{
0x00, 0x28, 0x02, 0x0f,
0x00, 0x00, 0x00, 0x0f,
0x00, 0x02, 0x00, 0x00,
0xfe, 0x80, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01,
0x08, byte('e'), byte('n'), byte('1'),
byte('0'), byte('1'), 0x00, 0x00,
0x00, 0x00, 0x20, 0x00,
},
ext: &InterfaceInfo{
Class: classInterfaceInfo,
Type: 0x0f,
Interface: &net.Interface{
Index: 15,
Name: "en101",
MTU: 8192,
},
Addr: &net.IPAddr{
IP: net.ParseIP("fe80::1"),
Zone: "en101",
},
},
},
} {
if err := fn(t, et.proto, et.typ, et.hdr, et.obj, et.ext); err != nil {
t.Error(err)
}
}
})
t.Run("InterfaceIdent", func(t *testing.T) {
for _, et := range []struct {
proto int
typ Type
hdr []byte
obj []byte
ext Extension
}{
// Interface identification by name
{
proto: iana.ProtocolICMP,
typ: ipv4.ICMPTypeExtendedEchoRequest,
hdr: []byte{
0x20, 0x00, 0x00, 0x00,
},
obj: []byte{
0x00, 0x0c, 0x03, 0x01,
byte('e'), byte('n'), byte('1'), byte('0'),
byte('1'), 0x00, 0x00, 0x00,
},
ext: &InterfaceIdent{
Class: classInterfaceIdent,
Type: typeInterfaceByName,
Name: "en101",
},
},
// Interface identification by index
{
proto: iana.ProtocolIPv6ICMP,
typ: ipv6.ICMPTypeExtendedEchoRequest,
hdr: []byte{
0x20, 0x00, 0x00, 0x00,
},
obj: []byte{
0x00, 0x0c, 0x03, 0x02,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x03, 0x8f,
},
ext: &InterfaceIdent{
Class: classInterfaceIdent,
Type: typeInterfaceByIndex,
Index: 911,
},
},
// Interface identification by address
{
proto: iana.ProtocolICMP,
typ: ipv4.ICMPTypeExtendedEchoRequest,
hdr: []byte{
0x20, 0x00, 0x00, 0x00,
},
obj: []byte{
0x00, 0x10, 0x03, 0x03,
byte(iana.AddrFamily48bitMAC >> 8), byte(iana.AddrFamily48bitMAC & 0x0f), 0x06, 0x00,
0x01, 0x23, 0x45, 0x67,
0x89, 0xab, 0x00, 0x00,
},
ext: &InterfaceIdent{
Class: classInterfaceIdent,
Type: typeInterfaceByAddress,
AFI: iana.AddrFamily48bitMAC,
Addr: []byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xab},
},
},
} {
if err := fn(t, et.proto, et.typ, et.hdr, et.obj, et.ext); err != nil {
t.Error(err)
}
}
})
}
func TestParseInterfaceName(t *testing.T) {
ifi := InterfaceInfo{Interface: &net.Interface{}}
for i, tt := range parseInterfaceNameTests {
for i, tt := range []struct {
b []byte
error
}{
{[]byte{0, 'e', 'n', '0'}, errInvalidExtension},
{[]byte{4, 'e', 'n', '0'}, nil},
{[]byte{7, 'e', 'n', '0', 0xff, 0xff, 0xff, 0xff}, errInvalidExtension},
{[]byte{8, 'e', 'n', '0', 0xff, 0xff, 0xff}, errMessageTooShort},
} {
if _, err := ifi.parseName(tt.b); err != tt.error {
t.Errorf("#%d: got %v; want %v", i, err, tt.error)
}

View File

@ -14,9 +14,6 @@ import (
const (
classInterfaceInfo = 2
afiIPv4 = 1
afiIPv6 = 2
)
const (
@ -127,11 +124,11 @@ func (ifi *InterfaceInfo) parseIfIndex(b []byte) ([]byte, error) {
func (ifi *InterfaceInfo) marshalIPAddr(proto int, b []byte) []byte {
switch proto {
case iana.ProtocolICMP:
binary.BigEndian.PutUint16(b[:2], uint16(afiIPv4))
binary.BigEndian.PutUint16(b[:2], uint16(iana.AddrFamilyIPv4))
copy(b[4:4+net.IPv4len], ifi.Addr.IP.To4())
b = b[4+net.IPv4len:]
case iana.ProtocolIPv6ICMP:
binary.BigEndian.PutUint16(b[:2], uint16(afiIPv6))
binary.BigEndian.PutUint16(b[:2], uint16(iana.AddrFamilyIPv6))
copy(b[4:4+net.IPv6len], ifi.Addr.IP.To16())
b = b[4+net.IPv6len:]
}
@ -145,14 +142,14 @@ func (ifi *InterfaceInfo) parseIPAddr(b []byte) ([]byte, error) {
afi := int(binary.BigEndian.Uint16(b[:2]))
b = b[4:]
switch afi {
case afiIPv4:
case iana.AddrFamilyIPv4:
if len(b) < net.IPv4len {
return nil, errMessageTooShort
}
ifi.Addr.IP = make(net.IP, net.IPv4len)
copy(ifi.Addr.IP, b[:net.IPv4len])
b = b[net.IPv4len:]
case afiIPv6:
case iana.AddrFamilyIPv6:
if len(b) < net.IPv6len {
return nil, errMessageTooShort
}
@ -234,3 +231,92 @@ func parseInterfaceInfo(b []byte) (Extension, error) {
}
return ifi, nil
}
const (
classInterfaceIdent = 3
typeInterfaceByName = 1
typeInterfaceByIndex = 2
typeInterfaceByAddress = 3
)
// An InterfaceIdent represents interface identification.
type InterfaceIdent struct {
Class int // extension object class number
Type int // extension object sub-type
Name string // interface name
Index int // interface index
AFI int // address family identifier; see address family numbers in IANA registry
Addr []byte // address
}
// Len implements the Len method of Extension interface.
func (ifi *InterfaceIdent) Len(_ int) int {
switch ifi.Type {
case typeInterfaceByName:
l := len(ifi.Name)
if l > 255 {
l = 255
}
return 4 + (l+3)&^3
case typeInterfaceByIndex:
return 4 + 8
case typeInterfaceByAddress:
return 4 + 4 + (len(ifi.Addr)+3)&^3
default:
return 4
}
}
// Marshal implements the Marshal method of Extension interface.
func (ifi *InterfaceIdent) Marshal(proto int) ([]byte, error) {
b := make([]byte, ifi.Len(proto))
if err := ifi.marshal(proto, b); err != nil {
return nil, err
}
return b, nil
}
func (ifi *InterfaceIdent) marshal(proto int, b []byte) error {
l := ifi.Len(proto)
binary.BigEndian.PutUint16(b[:2], uint16(l))
b[2], b[3] = classInterfaceIdent, byte(ifi.Type)
switch ifi.Type {
case typeInterfaceByName:
copy(b[4:], ifi.Name)
case typeInterfaceByIndex:
binary.BigEndian.PutUint64(b[4:4+8], uint64(ifi.Index))
case typeInterfaceByAddress:
binary.BigEndian.PutUint16(b[4:4+2], uint16(ifi.AFI))
b[4+2] = byte(len(ifi.Addr))
copy(b[4+4:], ifi.Addr)
}
return nil
}
func parseInterfaceIdent(b []byte) (Extension, error) {
ifi := &InterfaceIdent{
Class: int(b[2]),
Type: int(b[3]),
}
switch ifi.Type {
case typeInterfaceByName:
ifi.Name = strings.Trim(string(b[4:]), string(0))
case typeInterfaceByIndex:
if len(b[4:]) < 8 {
return nil, errInvalidExtension
}
ifi.Index = int(binary.BigEndian.Uint64(b[4 : 4+8]))
case typeInterfaceByAddress:
if len(b[4:]) < 4 {
return nil, errInvalidExtension
}
ifi.AFI = int(binary.BigEndian.Uint16(b[4 : 4+2]))
l := int(b[4+2])
if len(b[4+4:]) < l {
return nil, errInvalidExtension
}
ifi.Addr = make([]byte, l)
copy(ifi.Addr, b[4+4:])
}
return ifi, nil
}

View File

@ -15,69 +15,61 @@ import (
"golang.org/x/net/ipv4"
)
type ipv4HeaderTest struct {
wireHeaderFromKernel [ipv4.HeaderLen]byte
wireHeaderFromTradBSDKernel [ipv4.HeaderLen]byte
Header *ipv4.Header
}
var ipv4HeaderLittleEndianTest = ipv4HeaderTest{
// TODO(mikio): Add platform dependent wire header formats when
// we support new platforms.
wireHeaderFromKernel: [ipv4.HeaderLen]byte{
0x45, 0x01, 0xbe, 0xef,
0xca, 0xfe, 0x45, 0xdc,
0xff, 0x01, 0xde, 0xad,
172, 16, 254, 254,
192, 168, 0, 1,
},
wireHeaderFromTradBSDKernel: [ipv4.HeaderLen]byte{
0x45, 0x01, 0xef, 0xbe,
0xca, 0xfe, 0x45, 0xdc,
0xff, 0x01, 0xde, 0xad,
172, 16, 254, 254,
192, 168, 0, 1,
},
Header: &ipv4.Header{
Version: ipv4.Version,
Len: ipv4.HeaderLen,
TOS: 1,
TotalLen: 0xbeef,
ID: 0xcafe,
Flags: ipv4.DontFragment,
FragOff: 1500,
TTL: 255,
Protocol: 1,
Checksum: 0xdead,
Src: net.IPv4(172, 16, 254, 254),
Dst: net.IPv4(192, 168, 0, 1),
},
}
func TestParseIPv4Header(t *testing.T) {
tt := &ipv4HeaderLittleEndianTest
if socket.NativeEndian != binary.LittleEndian {
t.Skip("no test for non-little endian machine yet")
}
var wh []byte
switch runtime.GOOS {
case "darwin":
wh = tt.wireHeaderFromTradBSDKernel[:]
case "freebsd":
if freebsdVersion >= 1000000 {
wh = tt.wireHeaderFromKernel[:]
} else {
wh = tt.wireHeaderFromTradBSDKernel[:]
}
default:
wh = tt.wireHeaderFromKernel[:]
}
h, err := ParseIPv4Header(wh)
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(h, tt.Header) {
t.Fatalf("got %#v; want %#v", h, tt.Header)
switch socket.NativeEndian {
case binary.LittleEndian:
t.Run("LittleEndian", func(t *testing.T) {
// TODO(mikio): Add platform dependent wire
// header formats when we support new
// platforms.
wireHeaderFromKernel := [ipv4.HeaderLen]byte{
0x45, 0x01, 0xbe, 0xef,
0xca, 0xfe, 0x45, 0xdc,
0xff, 0x01, 0xde, 0xad,
172, 16, 254, 254,
192, 168, 0, 1,
}
wireHeaderFromTradBSDKernel := [ipv4.HeaderLen]byte{
0x45, 0x01, 0xef, 0xbe,
0xca, 0xfe, 0x45, 0xdc,
0xff, 0x01, 0xde, 0xad,
172, 16, 254, 254,
192, 168, 0, 1,
}
th := &ipv4.Header{
Version: ipv4.Version,
Len: ipv4.HeaderLen,
TOS: 1,
TotalLen: 0xbeef,
ID: 0xcafe,
Flags: ipv4.DontFragment,
FragOff: 1500,
TTL: 255,
Protocol: 1,
Checksum: 0xdead,
Src: net.IPv4(172, 16, 254, 254),
Dst: net.IPv4(192, 168, 0, 1),
}
var wh []byte
switch runtime.GOOS {
case "darwin":
wh = wireHeaderFromTradBSDKernel[:]
case "freebsd":
if freebsdVersion >= 1000000 {
wh = wireHeaderFromKernel[:]
} else {
wh = wireHeaderFromTradBSDKernel[:]
}
default:
wh = wireHeaderFromKernel[:]
}
h, err := ParseIPv4Header(wh)
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(h, th) {
t.Fatalf("got %#v; want %#v", h, th)
}
})
}
}

View File

@ -11,6 +11,7 @@
// ICMP extensions for MPLS are defined in RFC 4950.
// ICMP extensions for interface and next-hop identification are
// defined in RFC 5837.
// PROBE: A utility for probing interfaces is defined in RFC 8335.
package icmp // import "golang.org/x/net/icmp"
import (
@ -107,21 +108,25 @@ func (m *Message) Marshal(psh []byte) ([]byte, error) {
return b[len(psh):], nil
}
var parseFns = map[Type]func(int, []byte) (MessageBody, error){
var parseFns = map[Type]func(int, Type, []byte) (MessageBody, error){
ipv4.ICMPTypeDestinationUnreachable: parseDstUnreach,
ipv4.ICMPTypeTimeExceeded: parseTimeExceeded,
ipv4.ICMPTypeParameterProblem: parseParamProb,
ipv4.ICMPTypeEcho: parseEcho,
ipv4.ICMPTypeEchoReply: parseEcho,
ipv4.ICMPTypeEcho: parseEcho,
ipv4.ICMPTypeEchoReply: parseEcho,
ipv4.ICMPTypeExtendedEchoRequest: parseExtendedEchoRequest,
ipv4.ICMPTypeExtendedEchoReply: parseExtendedEchoReply,
ipv6.ICMPTypeDestinationUnreachable: parseDstUnreach,
ipv6.ICMPTypePacketTooBig: parsePacketTooBig,
ipv6.ICMPTypeTimeExceeded: parseTimeExceeded,
ipv6.ICMPTypeParameterProblem: parseParamProb,
ipv6.ICMPTypeEchoRequest: parseEcho,
ipv6.ICMPTypeEchoReply: parseEcho,
ipv6.ICMPTypeEchoRequest: parseEcho,
ipv6.ICMPTypeEchoReply: parseEcho,
ipv6.ICMPTypeExtendedEchoRequest: parseExtendedEchoRequest,
ipv6.ICMPTypeExtendedEchoReply: parseExtendedEchoReply,
}
// ParseMessage parses b as an ICMP message.
@ -143,7 +148,7 @@ func ParseMessage(proto int, b []byte) (*Message, error) {
if fn, ok := parseFns[m.Type]; !ok {
m.Body, err = parseDefaultMessageBody(proto, b[4:])
} else {
m.Body, err = fn(proto, b[4:])
m.Body, err = fn(proto, m.Type, b[4:])
}
if err != nil {
return nil, err

View File

@ -15,120 +15,141 @@ import (
"golang.org/x/net/ipv6"
)
var marshalAndParseMessageForIPv4Tests = []icmp.Message{
{
Type: ipv4.ICMPTypeDestinationUnreachable, Code: 15,
Body: &icmp.DstUnreach{
Data: []byte("ERROR-INVOKING-PACKET"),
},
},
{
Type: ipv4.ICMPTypeTimeExceeded, Code: 1,
Body: &icmp.TimeExceeded{
Data: []byte("ERROR-INVOKING-PACKET"),
},
},
{
Type: ipv4.ICMPTypeParameterProblem, Code: 2,
Body: &icmp.ParamProb{
Pointer: 8,
Data: []byte("ERROR-INVOKING-PACKET"),
},
},
{
Type: ipv4.ICMPTypeEcho, Code: 0,
Body: &icmp.Echo{
ID: 1, Seq: 2,
Data: []byte("HELLO-R-U-THERE"),
},
},
{
Type: ipv4.ICMPTypePhoturis,
Body: &icmp.DefaultMessageBody{
Data: []byte{0x80, 0x40, 0x20, 0x10},
},
},
}
func TestMarshalAndParseMessageForIPv4(t *testing.T) {
for i, tt := range marshalAndParseMessageForIPv4Tests {
b, err := tt.Marshal(nil)
if err != nil {
t.Fatal(err)
}
m, err := icmp.ParseMessage(iana.ProtocolICMP, b)
if err != nil {
t.Fatal(err)
}
if m.Type != tt.Type || m.Code != tt.Code {
t.Errorf("#%v: got %v; want %v", i, m, &tt)
}
if !reflect.DeepEqual(m.Body, tt.Body) {
t.Errorf("#%v: got %v; want %v", i, m.Body, tt.Body)
}
}
}
var marshalAndParseMessageForIPv6Tests = []icmp.Message{
{
Type: ipv6.ICMPTypeDestinationUnreachable, Code: 6,
Body: &icmp.DstUnreach{
Data: []byte("ERROR-INVOKING-PACKET"),
},
},
{
Type: ipv6.ICMPTypePacketTooBig, Code: 0,
Body: &icmp.PacketTooBig{
MTU: 1<<16 - 1,
Data: []byte("ERROR-INVOKING-PACKET"),
},
},
{
Type: ipv6.ICMPTypeTimeExceeded, Code: 1,
Body: &icmp.TimeExceeded{
Data: []byte("ERROR-INVOKING-PACKET"),
},
},
{
Type: ipv6.ICMPTypeParameterProblem, Code: 2,
Body: &icmp.ParamProb{
Pointer: 8,
Data: []byte("ERROR-INVOKING-PACKET"),
},
},
{
Type: ipv6.ICMPTypeEchoRequest, Code: 0,
Body: &icmp.Echo{
ID: 1, Seq: 2,
Data: []byte("HELLO-R-U-THERE"),
},
},
{
Type: ipv6.ICMPTypeDuplicateAddressConfirmation,
Body: &icmp.DefaultMessageBody{
Data: []byte{0x80, 0x40, 0x20, 0x10},
},
},
}
func TestMarshalAndParseMessageForIPv6(t *testing.T) {
pshicmp := icmp.IPv6PseudoHeader(net.ParseIP("fe80::1"), net.ParseIP("ff02::1"))
for i, tt := range marshalAndParseMessageForIPv6Tests {
for _, psh := range [][]byte{pshicmp, nil} {
b, err := tt.Marshal(psh)
if err != nil {
t.Fatal(err)
func TestMarshalAndParseMessage(t *testing.T) {
fn := func(t *testing.T, proto int, tms []icmp.Message) {
var pshs [][]byte
switch proto {
case iana.ProtocolICMP:
pshs = [][]byte{nil}
case iana.ProtocolIPv6ICMP:
pshs = [][]byte{
icmp.IPv6PseudoHeader(net.ParseIP("fe80::1"), net.ParseIP("ff02::1")),
nil,
}
m, err := icmp.ParseMessage(iana.ProtocolIPv6ICMP, b)
if err != nil {
t.Fatal(err)
}
if m.Type != tt.Type || m.Code != tt.Code {
t.Errorf("#%v: got %v; want %v", i, m, &tt)
}
if !reflect.DeepEqual(m.Body, tt.Body) {
t.Errorf("#%v: got %v; want %v", i, m.Body, tt.Body)
}
for i, tm := range tms {
for _, psh := range pshs {
b, err := tm.Marshal(psh)
if err != nil {
t.Fatal(err)
}
m, err := icmp.ParseMessage(proto, b)
if err != nil {
t.Fatal(err)
}
if m.Type != tm.Type || m.Code != tm.Code {
t.Errorf("#%d: got %#v; want %#v", i, m, &tm)
}
if !reflect.DeepEqual(m.Body, tm.Body) {
t.Errorf("#%d: got %#v; want %#v", i, m.Body, tm.Body)
}
}
}
}
t.Run("IPv4", func(t *testing.T) {
fn(t, iana.ProtocolICMP,
[]icmp.Message{
{
Type: ipv4.ICMPTypeDestinationUnreachable, Code: 15,
Body: &icmp.DstUnreach{
Data: []byte("ERROR-INVOKING-PACKET"),
},
},
{
Type: ipv4.ICMPTypeTimeExceeded, Code: 1,
Body: &icmp.TimeExceeded{
Data: []byte("ERROR-INVOKING-PACKET"),
},
},
{
Type: ipv4.ICMPTypeParameterProblem, Code: 2,
Body: &icmp.ParamProb{
Pointer: 8,
Data: []byte("ERROR-INVOKING-PACKET"),
},
},
{
Type: ipv4.ICMPTypeEcho, Code: 0,
Body: &icmp.Echo{
ID: 1, Seq: 2,
Data: []byte("HELLO-R-U-THERE"),
},
},
{
Type: ipv4.ICMPTypeExtendedEchoRequest, Code: 0,
Body: &icmp.ExtendedEchoRequest{
ID: 1, Seq: 2,
},
},
{
Type: ipv4.ICMPTypeExtendedEchoReply, Code: 0,
Body: &icmp.ExtendedEchoReply{
State: 4 /* Delay */, Active: true, IPv4: true,
},
},
{
Type: ipv4.ICMPTypePhoturis,
Body: &icmp.DefaultMessageBody{
Data: []byte{0x80, 0x40, 0x20, 0x10},
},
},
})
})
t.Run("IPv6", func(t *testing.T) {
fn(t, iana.ProtocolIPv6ICMP,
[]icmp.Message{
{
Type: ipv6.ICMPTypeDestinationUnreachable, Code: 6,
Body: &icmp.DstUnreach{
Data: []byte("ERROR-INVOKING-PACKET"),
},
},
{
Type: ipv6.ICMPTypePacketTooBig, Code: 0,
Body: &icmp.PacketTooBig{
MTU: 1<<16 - 1,
Data: []byte("ERROR-INVOKING-PACKET"),
},
},
{
Type: ipv6.ICMPTypeTimeExceeded, Code: 1,
Body: &icmp.TimeExceeded{
Data: []byte("ERROR-INVOKING-PACKET"),
},
},
{
Type: ipv6.ICMPTypeParameterProblem, Code: 2,
Body: &icmp.ParamProb{
Pointer: 8,
Data: []byte("ERROR-INVOKING-PACKET"),
},
},
{
Type: ipv6.ICMPTypeEchoRequest, Code: 0,
Body: &icmp.Echo{
ID: 1, Seq: 2,
Data: []byte("HELLO-R-U-THERE"),
},
},
{
Type: ipv6.ICMPTypeExtendedEchoRequest, Code: 0,
Body: &icmp.ExtendedEchoRequest{
ID: 1, Seq: 2,
},
},
{
Type: ipv6.ICMPTypeExtendedEchoReply, Code: 0,
Body: &icmp.ExtendedEchoReply{
State: 5 /* Probe */, Active: true, IPv6: true,
},
},
{
Type: ipv6.ICMPTypeDuplicateAddressConfirmation,
Body: &icmp.DefaultMessageBody{
Data: []byte{0x80, 0x40, 0x20, 0x10},
},
},
})
})
}

View File

@ -10,12 +10,14 @@ import "golang.org/x/net/internal/iana"
// exts as extensions, and returns a required length for message body
// and a required length for a padded original datagram in wire
// format.
func multipartMessageBodyDataLen(proto int, b []byte, exts []Extension) (bodyLen, dataLen int) {
func multipartMessageBodyDataLen(proto int, withOrigDgram bool, b []byte, exts []Extension) (bodyLen, dataLen int) {
for _, ext := range exts {
bodyLen += ext.Len(proto)
}
if bodyLen > 0 {
dataLen = multipartMessageOrigDatagramLen(proto, b)
if withOrigDgram {
dataLen = multipartMessageOrigDatagramLen(proto, b)
}
bodyLen += 4 // length of extension header
} else {
dataLen = len(b)
@ -50,8 +52,8 @@ func multipartMessageOrigDatagramLen(proto int, b []byte) int {
// marshalMultipartMessageBody takes data as an original datagram and
// exts as extesnsions, and returns a binary encoding of message body.
// It can be used for non-multipart message bodies when exts is nil.
func marshalMultipartMessageBody(proto int, data []byte, exts []Extension) ([]byte, error) {
bodyLen, dataLen := multipartMessageBodyDataLen(proto, data, exts)
func marshalMultipartMessageBody(proto int, withOrigDgram bool, data []byte, exts []Extension) ([]byte, error) {
bodyLen, dataLen := multipartMessageBodyDataLen(proto, withOrigDgram, data, exts)
b := make([]byte, 4+bodyLen)
copy(b[4:], data)
off := dataLen + 4
@ -71,16 +73,23 @@ func marshalMultipartMessageBody(proto int, data []byte, exts []Extension) ([]by
return nil, err
}
off += ext.Len(proto)
case *InterfaceIdent:
if err := ext.marshal(proto, b[off:]); err != nil {
return nil, err
}
off += ext.Len(proto)
}
}
s := checksum(b[dataLen+4:])
b[dataLen+4+2] ^= byte(s)
b[dataLen+4+3] ^= byte(s >> 8)
switch proto {
case iana.ProtocolICMP:
b[1] = byte(dataLen / 4)
case iana.ProtocolIPv6ICMP:
b[0] = byte(dataLen / 8)
if withOrigDgram {
switch proto {
case iana.ProtocolICMP:
b[1] = byte(dataLen / 4)
case iana.ProtocolIPv6ICMP:
b[0] = byte(dataLen / 8)
}
}
}
return b, nil
@ -88,7 +97,7 @@ func marshalMultipartMessageBody(proto int, data []byte, exts []Extension) ([]by
// parseMultipartMessageBody parses b as either a non-multipart
// message body or a multipart message body.
func parseMultipartMessageBody(proto int, b []byte) ([]byte, []Extension, error) {
func parseMultipartMessageBody(proto int, typ Type, b []byte) ([]byte, []Extension, error) {
var l int
switch proto {
case iana.ProtocolICMP:
@ -99,11 +108,14 @@ func parseMultipartMessageBody(proto int, b []byte) ([]byte, []Extension, error)
if len(b) == 4 {
return nil, nil, nil
}
exts, l, err := parseExtensions(b[4:], l)
exts, l, err := parseExtensions(typ, b[4:], l)
if err != nil {
l = len(b) - 4
}
data := make([]byte, l)
copy(data, b[4:])
var data []byte
if l > 0 {
data = make([]byte, l)
copy(data, b[4:])
}
return data, exts, nil
}

View File

@ -5,6 +5,7 @@
package icmp_test
import (
"errors"
"fmt"
"net"
"reflect"
@ -16,425 +17,557 @@ import (
"golang.org/x/net/ipv6"
)
var marshalAndParseMultipartMessageForIPv4Tests = []icmp.Message{
{
Type: ipv4.ICMPTypeDestinationUnreachable, Code: 15,
Body: &icmp.DstUnreach{
Data: []byte("ERROR-INVOKING-PACKET"),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{
Class: 1,
Type: 1,
Labels: []icmp.MPLSLabel{
{
Label: 16014,
TC: 0x4,
S: true,
TTL: 255,
},
},
},
&icmp.InterfaceInfo{
Class: 2,
Type: 0x0f,
Interface: &net.Interface{
Index: 15,
Name: "en101",
MTU: 8192,
},
Addr: &net.IPAddr{
IP: net.IPv4(192, 168, 0, 1).To4(),
},
},
},
},
},
{
Type: ipv4.ICMPTypeTimeExceeded, Code: 1,
Body: &icmp.TimeExceeded{
Data: []byte("ERROR-INVOKING-PACKET"),
Extensions: []icmp.Extension{
&icmp.InterfaceInfo{
Class: 2,
Type: 0x0f,
Interface: &net.Interface{
Index: 15,
Name: "en101",
MTU: 8192,
},
Addr: &net.IPAddr{
IP: net.IPv4(192, 168, 0, 1).To4(),
},
},
&icmp.MPLSLabelStack{
Class: 1,
Type: 1,
Labels: []icmp.MPLSLabel{
{
Label: 16014,
TC: 0x4,
S: true,
TTL: 255,
},
},
},
},
},
},
{
Type: ipv4.ICMPTypeParameterProblem, Code: 2,
Body: &icmp.ParamProb{
Pointer: 8,
Data: []byte("ERROR-INVOKING-PACKET"),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{
Class: 1,
Type: 1,
Labels: []icmp.MPLSLabel{
{
Label: 16014,
TC: 0x4,
S: true,
TTL: 255,
},
},
},
&icmp.InterfaceInfo{
Class: 2,
Type: 0x0f,
Interface: &net.Interface{
Index: 15,
Name: "en101",
MTU: 8192,
},
Addr: &net.IPAddr{
IP: net.IPv4(192, 168, 0, 1).To4(),
},
},
&icmp.InterfaceInfo{
Class: 2,
Type: 0x2f,
Interface: &net.Interface{
Index: 16,
Name: "en102",
MTU: 8192,
},
Addr: &net.IPAddr{
IP: net.IPv4(192, 168, 0, 2).To4(),
},
},
},
},
},
}
func TestMarshalAndParseMultipartMessageForIPv4(t *testing.T) {
for i, tt := range marshalAndParseMultipartMessageForIPv4Tests {
b, err := tt.Marshal(nil)
func TestMarshalAndParseMultipartMessage(t *testing.T) {
fn := func(t *testing.T, proto int, tm icmp.Message) error {
b, err := tm.Marshal(nil)
if err != nil {
t.Fatal(err)
return err
}
if b[5] != 32 {
t.Errorf("#%v: got %v; want 32", i, b[5])
switch tm.Type {
case ipv4.ICMPTypeExtendedEchoRequest, ipv6.ICMPTypeExtendedEchoRequest:
default:
switch proto {
case iana.ProtocolICMP:
if b[5] != 32 {
return fmt.Errorf("got %d; want 32", b[5])
}
case iana.ProtocolIPv6ICMP:
if b[4] != 16 {
return fmt.Errorf("got %d; want 16", b[4])
}
default:
return fmt.Errorf("unknown protocol: %d", proto)
}
}
m, err := icmp.ParseMessage(iana.ProtocolICMP, b)
m, err := icmp.ParseMessage(proto, b)
if err != nil {
t.Fatal(err)
return err
}
if m.Type != tt.Type || m.Code != tt.Code {
t.Errorf("#%v: got %v; want %v", i, m, &tt)
if m.Type != tm.Type || m.Code != tm.Code {
return fmt.Errorf("got %v; want %v", m, &tm)
}
switch m.Type {
case ipv4.ICMPTypeDestinationUnreachable:
got, want := m.Body.(*icmp.DstUnreach), tt.Body.(*icmp.DstUnreach)
case ipv4.ICMPTypeExtendedEchoRequest, ipv6.ICMPTypeExtendedEchoRequest:
got, want := m.Body.(*icmp.ExtendedEchoRequest), tm.Body.(*icmp.ExtendedEchoRequest)
if !reflect.DeepEqual(got.Extensions, want.Extensions) {
t.Error(dumpExtensions(i, got.Extensions, want.Extensions))
return errors.New(dumpExtensions(got.Extensions, want.Extensions))
}
case ipv4.ICMPTypeDestinationUnreachable:
got, want := m.Body.(*icmp.DstUnreach), tm.Body.(*icmp.DstUnreach)
if !reflect.DeepEqual(got.Extensions, want.Extensions) {
return errors.New(dumpExtensions(got.Extensions, want.Extensions))
}
if len(got.Data) != 128 {
t.Errorf("#%v: got %v; want 128", i, len(got.Data))
return fmt.Errorf("got %d; want 128", len(got.Data))
}
case ipv4.ICMPTypeTimeExceeded:
got, want := m.Body.(*icmp.TimeExceeded), tt.Body.(*icmp.TimeExceeded)
got, want := m.Body.(*icmp.TimeExceeded), tm.Body.(*icmp.TimeExceeded)
if !reflect.DeepEqual(got.Extensions, want.Extensions) {
t.Error(dumpExtensions(i, got.Extensions, want.Extensions))
return errors.New(dumpExtensions(got.Extensions, want.Extensions))
}
if len(got.Data) != 128 {
t.Errorf("#%v: got %v; want 128", i, len(got.Data))
return fmt.Errorf("got %d; want 128", len(got.Data))
}
case ipv4.ICMPTypeParameterProblem:
got, want := m.Body.(*icmp.ParamProb), tt.Body.(*icmp.ParamProb)
got, want := m.Body.(*icmp.ParamProb), tm.Body.(*icmp.ParamProb)
if !reflect.DeepEqual(got.Extensions, want.Extensions) {
t.Error(dumpExtensions(i, got.Extensions, want.Extensions))
return errors.New(dumpExtensions(got.Extensions, want.Extensions))
}
if len(got.Data) != 128 {
t.Errorf("#%v: got %v; want 128", i, len(got.Data))
return fmt.Errorf("got %d; want 128", len(got.Data))
}
case ipv6.ICMPTypeDestinationUnreachable:
got, want := m.Body.(*icmp.DstUnreach), tm.Body.(*icmp.DstUnreach)
if !reflect.DeepEqual(got.Extensions, want.Extensions) {
return errors.New(dumpExtensions(got.Extensions, want.Extensions))
}
if len(got.Data) != 128 {
return fmt.Errorf("got %d; want 128", len(got.Data))
}
case ipv6.ICMPTypeTimeExceeded:
got, want := m.Body.(*icmp.TimeExceeded), tm.Body.(*icmp.TimeExceeded)
if !reflect.DeepEqual(got.Extensions, want.Extensions) {
return errors.New(dumpExtensions(got.Extensions, want.Extensions))
}
if len(got.Data) != 128 {
return fmt.Errorf("got %d; want 128", len(got.Data))
}
default:
return fmt.Errorf("unknown message type: %v", m.Type)
}
return nil
}
}
var marshalAndParseMultipartMessageForIPv6Tests = []icmp.Message{
{
Type: ipv6.ICMPTypeDestinationUnreachable, Code: 6,
Body: &icmp.DstUnreach{
Data: []byte("ERROR-INVOKING-PACKET"),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{
Class: 1,
Type: 1,
Labels: []icmp.MPLSLabel{
{
Label: 16014,
TC: 0x4,
S: true,
TTL: 255,
t.Run("IPv4", func(t *testing.T) {
for i, tm := range []icmp.Message{
{
Type: ipv4.ICMPTypeDestinationUnreachable, Code: 15,
Body: &icmp.DstUnreach{
Data: []byte("ERROR-INVOKING-PACKET"),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{
Class: 1,
Type: 1,
Labels: []icmp.MPLSLabel{
{
Label: 16014,
TC: 0x4,
S: true,
TTL: 255,
},
},
},
&icmp.InterfaceInfo{
Class: 2,
Type: 0x0f,
Interface: &net.Interface{
Index: 15,
Name: "en101",
MTU: 8192,
},
Addr: &net.IPAddr{
IP: net.IPv4(192, 168, 0, 1).To4(),
},
},
},
},
&icmp.InterfaceInfo{
Class: 2,
Type: 0x0f,
Interface: &net.Interface{
Index: 15,
Name: "en101",
MTU: 8192,
},
Addr: &net.IPAddr{
IP: net.ParseIP("fe80::1"),
Zone: "en101",
},
},
},
},
},
{
Type: ipv6.ICMPTypeTimeExceeded, Code: 1,
Body: &icmp.TimeExceeded{
Data: []byte("ERROR-INVOKING-PACKET"),
Extensions: []icmp.Extension{
&icmp.InterfaceInfo{
Class: 2,
Type: 0x0f,
Interface: &net.Interface{
Index: 15,
Name: "en101",
MTU: 8192,
},
Addr: &net.IPAddr{
IP: net.ParseIP("fe80::1"),
Zone: "en101",
},
},
&icmp.MPLSLabelStack{
Class: 1,
Type: 1,
Labels: []icmp.MPLSLabel{
{
Label: 16014,
TC: 0x4,
S: true,
TTL: 255,
{
Type: ipv4.ICMPTypeTimeExceeded, Code: 1,
Body: &icmp.TimeExceeded{
Data: []byte("ERROR-INVOKING-PACKET"),
Extensions: []icmp.Extension{
&icmp.InterfaceInfo{
Class: 2,
Type: 0x0f,
Interface: &net.Interface{
Index: 15,
Name: "en101",
MTU: 8192,
},
Addr: &net.IPAddr{
IP: net.IPv4(192, 168, 0, 1).To4(),
},
},
&icmp.MPLSLabelStack{
Class: 1,
Type: 1,
Labels: []icmp.MPLSLabel{
{
Label: 16014,
TC: 0x4,
S: true,
TTL: 255,
},
},
},
},
},
&icmp.InterfaceInfo{
Class: 2,
Type: 0x2f,
Interface: &net.Interface{
Index: 16,
Name: "en102",
MTU: 8192,
},
Addr: &net.IPAddr{
IP: net.ParseIP("fe80::1"),
Zone: "en102",
},
{
Type: ipv4.ICMPTypeParameterProblem, Code: 2,
Body: &icmp.ParamProb{
Pointer: 8,
Data: []byte("ERROR-INVOKING-PACKET"),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{
Class: 1,
Type: 1,
Labels: []icmp.MPLSLabel{
{
Label: 16014,
TC: 0x4,
S: true,
TTL: 255,
},
},
},
&icmp.InterfaceInfo{
Class: 2,
Type: 0x0f,
Interface: &net.Interface{
Index: 15,
Name: "en101",
MTU: 8192,
},
Addr: &net.IPAddr{
IP: net.IPv4(192, 168, 0, 1).To4(),
},
},
&icmp.InterfaceInfo{
Class: 2,
Type: 0x2f,
Interface: &net.Interface{
Index: 16,
Name: "en102",
MTU: 8192,
},
Addr: &net.IPAddr{
IP: net.IPv4(192, 168, 0, 2).To4(),
},
},
},
},
},
},
},
}
func TestMarshalAndParseMultipartMessageForIPv6(t *testing.T) {
pshicmp := icmp.IPv6PseudoHeader(net.ParseIP("fe80::1"), net.ParseIP("ff02::1"))
for i, tt := range marshalAndParseMultipartMessageForIPv6Tests {
for _, psh := range [][]byte{pshicmp, nil} {
b, err := tt.Marshal(psh)
if err != nil {
t.Fatal(err)
}
if b[4] != 16 {
t.Errorf("#%v: got %v; want 16", i, b[4])
}
m, err := icmp.ParseMessage(iana.ProtocolIPv6ICMP, b)
if err != nil {
t.Fatal(err)
}
if m.Type != tt.Type || m.Code != tt.Code {
t.Errorf("#%v: got %v; want %v", i, m, &tt)
}
switch m.Type {
case ipv6.ICMPTypeDestinationUnreachable:
got, want := m.Body.(*icmp.DstUnreach), tt.Body.(*icmp.DstUnreach)
if !reflect.DeepEqual(got.Extensions, want.Extensions) {
t.Error(dumpExtensions(i, got.Extensions, want.Extensions))
}
if len(got.Data) != 128 {
t.Errorf("#%v: got %v; want 128", i, len(got.Data))
}
case ipv6.ICMPTypeTimeExceeded:
got, want := m.Body.(*icmp.TimeExceeded), tt.Body.(*icmp.TimeExceeded)
if !reflect.DeepEqual(got.Extensions, want.Extensions) {
t.Error(dumpExtensions(i, got.Extensions, want.Extensions))
}
if len(got.Data) != 128 {
t.Errorf("#%v: got %v; want 128", i, len(got.Data))
}
{
Type: ipv4.ICMPTypeExtendedEchoRequest, Code: 0,
Body: &icmp.ExtendedEchoRequest{
ID: 1, Seq: 2, Local: true,
Extensions: []icmp.Extension{
&icmp.InterfaceIdent{
Class: 3,
Type: 1,
Name: "en101",
},
},
},
},
{
Type: ipv4.ICMPTypeExtendedEchoRequest, Code: 0,
Body: &icmp.ExtendedEchoRequest{
ID: 1, Seq: 2, Local: true,
Extensions: []icmp.Extension{
&icmp.InterfaceIdent{
Class: 3,
Type: 2,
Index: 911,
},
&icmp.InterfaceIdent{
Class: 3,
Type: 1,
Name: "en101",
},
},
},
},
{
Type: ipv4.ICMPTypeExtendedEchoRequest, Code: 0,
Body: &icmp.ExtendedEchoRequest{
ID: 1, Seq: 2,
Extensions: []icmp.Extension{
&icmp.InterfaceIdent{
Class: 3,
Type: 3,
AFI: iana.AddrFamily48bitMAC,
Addr: []byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xab},
},
},
},
},
} {
if err := fn(t, iana.ProtocolICMP, tm); err != nil {
t.Errorf("#%d: %v", i, err)
}
}
}
})
t.Run("IPv6", func(t *testing.T) {
for i, tm := range []icmp.Message{
{
Type: ipv6.ICMPTypeDestinationUnreachable, Code: 6,
Body: &icmp.DstUnreach{
Data: []byte("ERROR-INVOKING-PACKET"),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{
Class: 1,
Type: 1,
Labels: []icmp.MPLSLabel{
{
Label: 16014,
TC: 0x4,
S: true,
TTL: 255,
},
},
},
&icmp.InterfaceInfo{
Class: 2,
Type: 0x0f,
Interface: &net.Interface{
Index: 15,
Name: "en101",
MTU: 8192,
},
Addr: &net.IPAddr{
IP: net.ParseIP("fe80::1"),
Zone: "en101",
},
},
},
},
},
{
Type: ipv6.ICMPTypeTimeExceeded, Code: 1,
Body: &icmp.TimeExceeded{
Data: []byte("ERROR-INVOKING-PACKET"),
Extensions: []icmp.Extension{
&icmp.InterfaceInfo{
Class: 2,
Type: 0x0f,
Interface: &net.Interface{
Index: 15,
Name: "en101",
MTU: 8192,
},
Addr: &net.IPAddr{
IP: net.ParseIP("fe80::1"),
Zone: "en101",
},
},
&icmp.MPLSLabelStack{
Class: 1,
Type: 1,
Labels: []icmp.MPLSLabel{
{
Label: 16014,
TC: 0x4,
S: true,
TTL: 255,
},
},
},
&icmp.InterfaceInfo{
Class: 2,
Type: 0x2f,
Interface: &net.Interface{
Index: 16,
Name: "en102",
MTU: 8192,
},
Addr: &net.IPAddr{
IP: net.ParseIP("fe80::1"),
Zone: "en102",
},
},
},
},
},
{
Type: ipv6.ICMPTypeExtendedEchoRequest, Code: 0,
Body: &icmp.ExtendedEchoRequest{
ID: 1, Seq: 2, Local: true,
Extensions: []icmp.Extension{
&icmp.InterfaceIdent{
Class: 3,
Type: 1,
Name: "en101",
},
},
},
},
{
Type: ipv6.ICMPTypeExtendedEchoRequest, Code: 0,
Body: &icmp.ExtendedEchoRequest{
ID: 1, Seq: 2, Local: true,
Extensions: []icmp.Extension{
&icmp.InterfaceIdent{
Class: 3,
Type: 1,
Name: "en101",
},
&icmp.InterfaceIdent{
Class: 3,
Type: 2,
Index: 911,
},
},
},
},
{
Type: ipv6.ICMPTypeExtendedEchoRequest, Code: 0,
Body: &icmp.ExtendedEchoRequest{
ID: 1, Seq: 2,
Extensions: []icmp.Extension{
&icmp.InterfaceIdent{
Class: 3,
Type: 3,
AFI: iana.AddrFamilyIPv4,
Addr: []byte{192, 0, 2, 1},
},
},
},
},
} {
if err := fn(t, iana.ProtocolIPv6ICMP, tm); err != nil {
t.Errorf("#%d: %v", i, err)
}
}
})
}
func dumpExtensions(i int, gotExts, wantExts []icmp.Extension) string {
func dumpExtensions(gotExts, wantExts []icmp.Extension) string {
var s string
for j, got := range gotExts {
for i, got := range gotExts {
switch got := got.(type) {
case *icmp.MPLSLabelStack:
want := wantExts[j].(*icmp.MPLSLabelStack)
want := wantExts[i].(*icmp.MPLSLabelStack)
if !reflect.DeepEqual(got, want) {
s += fmt.Sprintf("#%v/%v: got %#v; want %#v\n", i, j, got, want)
s += fmt.Sprintf("#%d: got %#v; want %#v\n", i, got, want)
}
case *icmp.InterfaceInfo:
want := wantExts[j].(*icmp.InterfaceInfo)
want := wantExts[i].(*icmp.InterfaceInfo)
if !reflect.DeepEqual(got, want) {
s += fmt.Sprintf("#%v/%v: got %#v, %#v, %#v; want %#v, %#v, %#v\n", i, j, got, got.Interface, got.Addr, want, want.Interface, want.Addr)
s += fmt.Sprintf("#%d: got %#v, %#v, %#v; want %#v, %#v, %#v\n", i, got, got.Interface, got.Addr, want, want.Interface, want.Addr)
}
case *icmp.InterfaceIdent:
want := wantExts[i].(*icmp.InterfaceIdent)
if !reflect.DeepEqual(got, want) {
s += fmt.Sprintf("#%d: got %#v; want %#v\n", i, got, want)
}
}
}
if len(s) == 0 {
return "<nil>"
}
return s[:len(s)-1]
}
var multipartMessageBodyLenTests = []struct {
proto int
in icmp.MessageBody
out int
}{
{
iana.ProtocolICMP,
&icmp.DstUnreach{
Data: make([]byte, ipv4.HeaderLen),
},
4 + ipv4.HeaderLen, // unused and original datagram
},
{
iana.ProtocolICMP,
&icmp.TimeExceeded{
Data: make([]byte, ipv4.HeaderLen),
},
4 + ipv4.HeaderLen, // unused and original datagram
},
{
iana.ProtocolICMP,
&icmp.ParamProb{
Data: make([]byte, ipv4.HeaderLen),
},
4 + ipv4.HeaderLen, // [pointer, unused] and original datagram
},
{
iana.ProtocolICMP,
&icmp.ParamProb{
Data: make([]byte, ipv4.HeaderLen),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{},
},
},
4 + 4 + 4 + 0 + 128, // [pointer, length, unused], extension header, object header, object payload, original datagram
},
{
iana.ProtocolICMP,
&icmp.ParamProb{
Data: make([]byte, 128),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{},
},
},
4 + 4 + 4 + 0 + 128, // [pointer, length, unused], extension header, object header, object payload and original datagram
},
{
iana.ProtocolICMP,
&icmp.ParamProb{
Data: make([]byte, 129),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{},
},
},
4 + 4 + 4 + 0 + 132, // [pointer, length, unused], extension header, object header, object payload and original datagram
},
{
iana.ProtocolIPv6ICMP,
&icmp.DstUnreach{
Data: make([]byte, ipv6.HeaderLen),
},
4 + ipv6.HeaderLen, // unused and original datagram
},
{
iana.ProtocolIPv6ICMP,
&icmp.PacketTooBig{
Data: make([]byte, ipv6.HeaderLen),
},
4 + ipv6.HeaderLen, // mtu and original datagram
},
{
iana.ProtocolIPv6ICMP,
&icmp.TimeExceeded{
Data: make([]byte, ipv6.HeaderLen),
},
4 + ipv6.HeaderLen, // unused and original datagram
},
{
iana.ProtocolIPv6ICMP,
&icmp.ParamProb{
Data: make([]byte, ipv6.HeaderLen),
},
4 + ipv6.HeaderLen, // pointer and original datagram
},
{
iana.ProtocolIPv6ICMP,
&icmp.DstUnreach{
Data: make([]byte, 127),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{},
},
},
4 + 4 + 4 + 0 + 128, // [length, unused], extension header, object header, object payload and original datagram
},
{
iana.ProtocolIPv6ICMP,
&icmp.DstUnreach{
Data: make([]byte, 128),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{},
},
},
4 + 4 + 4 + 0 + 128, // [length, unused], extension header, object header, object payload and original datagram
},
{
iana.ProtocolIPv6ICMP,
&icmp.DstUnreach{
Data: make([]byte, 129),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{},
},
},
4 + 4 + 4 + 0 + 136, // [length, unused], extension header, object header, object payload and original datagram
},
}
func TestMultipartMessageBodyLen(t *testing.T) {
for i, tt := range multipartMessageBodyLenTests {
for i, tt := range []struct {
proto int
in icmp.MessageBody
out int
}{
{
iana.ProtocolICMP,
&icmp.DstUnreach{
Data: make([]byte, ipv4.HeaderLen),
},
4 + ipv4.HeaderLen, // unused and original datagram
},
{
iana.ProtocolICMP,
&icmp.TimeExceeded{
Data: make([]byte, ipv4.HeaderLen),
},
4 + ipv4.HeaderLen, // unused and original datagram
},
{
iana.ProtocolICMP,
&icmp.ParamProb{
Data: make([]byte, ipv4.HeaderLen),
},
4 + ipv4.HeaderLen, // [pointer, unused] and original datagram
},
{
iana.ProtocolICMP,
&icmp.ParamProb{
Data: make([]byte, ipv4.HeaderLen),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{},
},
},
4 + 4 + 4 + 0 + 128, // [pointer, length, unused], extension header, object header, object payload, original datagram
},
{
iana.ProtocolICMP,
&icmp.ParamProb{
Data: make([]byte, 128),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{},
},
},
4 + 4 + 4 + 0 + 128, // [pointer, length, unused], extension header, object header, object payload and original datagram
},
{
iana.ProtocolICMP,
&icmp.ParamProb{
Data: make([]byte, 129),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{},
},
},
4 + 4 + 4 + 0 + 132, // [pointer, length, unused], extension header, object header, object payload and original datagram
},
{
iana.ProtocolIPv6ICMP,
&icmp.DstUnreach{
Data: make([]byte, ipv6.HeaderLen),
},
4 + ipv6.HeaderLen, // unused and original datagram
},
{
iana.ProtocolIPv6ICMP,
&icmp.PacketTooBig{
Data: make([]byte, ipv6.HeaderLen),
},
4 + ipv6.HeaderLen, // mtu and original datagram
},
{
iana.ProtocolIPv6ICMP,
&icmp.TimeExceeded{
Data: make([]byte, ipv6.HeaderLen),
},
4 + ipv6.HeaderLen, // unused and original datagram
},
{
iana.ProtocolIPv6ICMP,
&icmp.ParamProb{
Data: make([]byte, ipv6.HeaderLen),
},
4 + ipv6.HeaderLen, // pointer and original datagram
},
{
iana.ProtocolIPv6ICMP,
&icmp.DstUnreach{
Data: make([]byte, 127),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{},
},
},
4 + 4 + 4 + 0 + 128, // [length, unused], extension header, object header, object payload and original datagram
},
{
iana.ProtocolIPv6ICMP,
&icmp.DstUnreach{
Data: make([]byte, 128),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{},
},
},
4 + 4 + 4 + 0 + 128, // [length, unused], extension header, object header, object payload and original datagram
},
{
iana.ProtocolIPv6ICMP,
&icmp.DstUnreach{
Data: make([]byte, 129),
Extensions: []icmp.Extension{
&icmp.MPLSLabelStack{},
},
},
4 + 4 + 4 + 0 + 136, // [length, unused], extension header, object header, object payload and original datagram
},
{
iana.ProtocolICMP,
&icmp.ExtendedEchoRequest{},
4, // [id, seq, l-bit]
},
{
iana.ProtocolICMP,
&icmp.ExtendedEchoRequest{
Extensions: []icmp.Extension{
&icmp.InterfaceIdent{},
},
},
4 + 4 + 4, // [id, seq, l-bit], extension header, object header
},
{
iana.ProtocolIPv6ICMP,
&icmp.ExtendedEchoRequest{
Extensions: []icmp.Extension{
&icmp.InterfaceIdent{
Type: 3,
AFI: iana.AddrFamilyNSAP,
Addr: []byte{0x49, 0x00, 0x01, 0xaa, 0xaa, 0xbb, 0xbb, 0xcc, 0xcc, 0x00},
},
},
},
4 + 4 + 4 + 16, // [id, seq, l-bit], extension header, object header, object payload
},
} {
if out := tt.in.Len(tt.proto); out != tt.out {
t.Errorf("#%d: got %d; want %d", i, out, tt.out)
}

View File

@ -29,7 +29,7 @@ func (p *PacketTooBig) Marshal(proto int) ([]byte, error) {
}
// parsePacketTooBig parses b as an ICMP packet too big message body.
func parsePacketTooBig(proto int, b []byte) (MessageBody, error) {
func parsePacketTooBig(proto int, _ Type, b []byte) (MessageBody, error) {
bodyLen := len(b)
if bodyLen < 4 {
return nil, errMessageTooShort

View File

@ -21,7 +21,7 @@ func (p *ParamProb) Len(proto int) int {
if p == nil {
return 0
}
l, _ := multipartMessageBodyDataLen(proto, p.Data, p.Extensions)
l, _ := multipartMessageBodyDataLen(proto, true, p.Data, p.Extensions)
return 4 + l
}
@ -33,7 +33,7 @@ func (p *ParamProb) Marshal(proto int) ([]byte, error) {
copy(b[4:], p.Data)
return b, nil
}
b, err := marshalMultipartMessageBody(proto, p.Data, p.Extensions)
b, err := marshalMultipartMessageBody(proto, true, p.Data, p.Extensions)
if err != nil {
return nil, err
}
@ -42,7 +42,7 @@ func (p *ParamProb) Marshal(proto int) ([]byte, error) {
}
// parseParamProb parses b as an ICMP parameter problem message body.
func parseParamProb(proto int, b []byte) (MessageBody, error) {
func parseParamProb(proto int, typ Type, b []byte) (MessageBody, error) {
if len(b) < 4 {
return nil, errMessageTooShort
}
@ -55,7 +55,7 @@ func parseParamProb(proto int, b []byte) (MessageBody, error) {
}
p.Pointer = uintptr(b[0])
var err error
p.Data, p.Extensions, err = parseMultipartMessageBody(proto, b)
p.Data, p.Extensions, err = parseMultipartMessageBody(proto, typ, b)
if err != nil {
return nil, err
}

View File

@ -1,200 +0,0 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package icmp_test
import (
"errors"
"fmt"
"net"
"os"
"runtime"
"sync"
"testing"
"time"
"golang.org/x/net/icmp"
"golang.org/x/net/internal/iana"
"golang.org/x/net/internal/nettest"
"golang.org/x/net/ipv4"
"golang.org/x/net/ipv6"
)
func googleAddr(c *icmp.PacketConn, protocol int) (net.Addr, error) {
const host = "www.google.com"
ips, err := net.LookupIP(host)
if err != nil {
return nil, err
}
netaddr := func(ip net.IP) (net.Addr, error) {
switch c.LocalAddr().(type) {
case *net.UDPAddr:
return &net.UDPAddr{IP: ip}, nil
case *net.IPAddr:
return &net.IPAddr{IP: ip}, nil
default:
return nil, errors.New("neither UDPAddr nor IPAddr")
}
}
for _, ip := range ips {
switch protocol {
case iana.ProtocolICMP:
if ip.To4() != nil {
return netaddr(ip)
}
case iana.ProtocolIPv6ICMP:
if ip.To16() != nil && ip.To4() == nil {
return netaddr(ip)
}
}
}
return nil, errors.New("no A or AAAA record")
}
type pingTest struct {
network, address string
protocol int
mtype icmp.Type
}
var nonPrivilegedPingTests = []pingTest{
{"udp4", "0.0.0.0", iana.ProtocolICMP, ipv4.ICMPTypeEcho},
{"udp6", "::", iana.ProtocolIPv6ICMP, ipv6.ICMPTypeEchoRequest},
}
func TestNonPrivilegedPing(t *testing.T) {
if testing.Short() {
t.Skip("avoid external network")
}
switch runtime.GOOS {
case "darwin":
case "linux":
t.Log("you may need to adjust the net.ipv4.ping_group_range kernel state")
default:
t.Skipf("not supported on %s", runtime.GOOS)
}
for i, tt := range nonPrivilegedPingTests {
if err := doPing(tt, i); err != nil {
t.Error(err)
}
}
}
var privilegedPingTests = []pingTest{
{"ip4:icmp", "0.0.0.0", iana.ProtocolICMP, ipv4.ICMPTypeEcho},
{"ip6:ipv6-icmp", "::", iana.ProtocolIPv6ICMP, ipv6.ICMPTypeEchoRequest},
}
func TestPrivilegedPing(t *testing.T) {
if testing.Short() {
t.Skip("avoid external network")
}
if m, ok := nettest.SupportsRawIPSocket(); !ok {
t.Skip(m)
}
for i, tt := range privilegedPingTests {
if err := doPing(tt, i); err != nil {
t.Error(err)
}
}
}
func doPing(tt pingTest, seq int) error {
c, err := icmp.ListenPacket(tt.network, tt.address)
if err != nil {
return err
}
defer c.Close()
dst, err := googleAddr(c, tt.protocol)
if err != nil {
return err
}
if tt.network != "udp6" && tt.protocol == iana.ProtocolIPv6ICMP {
var f ipv6.ICMPFilter
f.SetAll(true)
f.Accept(ipv6.ICMPTypeDestinationUnreachable)
f.Accept(ipv6.ICMPTypePacketTooBig)
f.Accept(ipv6.ICMPTypeTimeExceeded)
f.Accept(ipv6.ICMPTypeParameterProblem)
f.Accept(ipv6.ICMPTypeEchoReply)
if err := c.IPv6PacketConn().SetICMPFilter(&f); err != nil {
return err
}
}
wm := icmp.Message{
Type: tt.mtype, Code: 0,
Body: &icmp.Echo{
ID: os.Getpid() & 0xffff, Seq: 1 << uint(seq),
Data: []byte("HELLO-R-U-THERE"),
},
}
wb, err := wm.Marshal(nil)
if err != nil {
return err
}
if n, err := c.WriteTo(wb, dst); err != nil {
return err
} else if n != len(wb) {
return fmt.Errorf("got %v; want %v", n, len(wb))
}
rb := make([]byte, 1500)
if err := c.SetReadDeadline(time.Now().Add(3 * time.Second)); err != nil {
return err
}
n, peer, err := c.ReadFrom(rb)
if err != nil {
return err
}
rm, err := icmp.ParseMessage(tt.protocol, rb[:n])
if err != nil {
return err
}
switch rm.Type {
case ipv4.ICMPTypeEchoReply, ipv6.ICMPTypeEchoReply:
return nil
default:
return fmt.Errorf("got %+v from %v; want echo reply", rm, peer)
}
}
func TestConcurrentNonPrivilegedListenPacket(t *testing.T) {
if testing.Short() {
t.Skip("avoid external network")
}
switch runtime.GOOS {
case "darwin":
case "linux":
t.Log("you may need to adjust the net.ipv4.ping_group_range kernel state")
default:
t.Skipf("not supported on %s", runtime.GOOS)
}
network, address := "udp4", "127.0.0.1"
if !nettest.SupportsIPv4() {
network, address = "udp6", "::1"
}
const N = 1000
var wg sync.WaitGroup
wg.Add(N)
for i := 0; i < N; i++ {
go func() {
defer wg.Done()
c, err := icmp.ListenPacket(network, address)
if err != nil {
t.Error(err)
return
}
c.Close()
}()
}
wg.Wait()
}

View File

@ -15,23 +15,23 @@ func (p *TimeExceeded) Len(proto int) int {
if p == nil {
return 0
}
l, _ := multipartMessageBodyDataLen(proto, p.Data, p.Extensions)
l, _ := multipartMessageBodyDataLen(proto, true, p.Data, p.Extensions)
return 4 + l
}
// Marshal implements the Marshal method of MessageBody interface.
func (p *TimeExceeded) Marshal(proto int) ([]byte, error) {
return marshalMultipartMessageBody(proto, p.Data, p.Extensions)
return marshalMultipartMessageBody(proto, true, p.Data, p.Extensions)
}
// parseTimeExceeded parses b as an ICMP time exceeded message body.
func parseTimeExceeded(proto int, b []byte) (MessageBody, error) {
func parseTimeExceeded(proto int, typ Type, b []byte) (MessageBody, error) {
if len(b) < 4 {
return nil, errMessageTooShort
}
p := &TimeExceeded{}
var err error
p.Data, p.Extensions, err = parseMultipartMessageBody(proto, b)
p.Data, p.Extensions, err = parseMultipartMessageBody(proto, typ, b)
if err != nil {
return nil, err
}

View File

@ -1,5 +1,5 @@
// go generate gen.go
// GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
// Code generated by the command above; DO NOT EDIT.
// Package iana provides protocol number resources managed by the Internet Assigned Numbers Authority (IANA).
package iana // import "golang.org/x/net/internal/iana"
@ -38,7 +38,7 @@ const (
CongestionExperienced = 0x3 // CE (Congestion Experienced)
)
// Protocol Numbers, Updated: 2016-06-22
// Protocol Numbers, Updated: 2017-10-13
const (
ProtocolIP = 0 // IPv4 encapsulation, pseudo protocol number
ProtocolHOPOPT = 0 // IPv6 Hop-by-Hop Option
@ -178,3 +178,50 @@ const (
ProtocolROHC = 142 // Robust Header Compression
ProtocolReserved = 255 // Reserved
)
// Address Family Numbers, Updated: 2016-10-25
const (
AddrFamilyIPv4 = 1 // IP (IP version 4)
AddrFamilyIPv6 = 2 // IP6 (IP version 6)
AddrFamilyNSAP = 3 // NSAP
AddrFamilyHDLC = 4 // HDLC (8-bit multidrop)
AddrFamilyBBN1822 = 5 // BBN 1822
AddrFamily802 = 6 // 802 (includes all 802 media plus Ethernet "canonical format")
AddrFamilyE163 = 7 // E.163
AddrFamilyE164 = 8 // E.164 (SMDS, Frame Relay, ATM)
AddrFamilyF69 = 9 // F.69 (Telex)
AddrFamilyX121 = 10 // X.121 (X.25, Frame Relay)
AddrFamilyIPX = 11 // IPX
AddrFamilyAppletalk = 12 // Appletalk
AddrFamilyDecnetIV = 13 // Decnet IV
AddrFamilyBanyanVines = 14 // Banyan Vines
AddrFamilyE164withSubaddress = 15 // E.164 with NSAP format subaddress
AddrFamilyDNS = 16 // DNS (Domain Name System)
AddrFamilyDistinguishedName = 17 // Distinguished Name
AddrFamilyASNumber = 18 // AS Number
AddrFamilyXTPoverIPv4 = 19 // XTP over IP version 4
AddrFamilyXTPoverIPv6 = 20 // XTP over IP version 6
AddrFamilyXTPnativemodeXTP = 21 // XTP native mode XTP
AddrFamilyFibreChannelWorldWidePortName = 22 // Fibre Channel World-Wide Port Name
AddrFamilyFibreChannelWorldWideNodeName = 23 // Fibre Channel World-Wide Node Name
AddrFamilyGWID = 24 // GWID
AddrFamilyL2VPN = 25 // AFI for L2VPN information
AddrFamilyMPLSTPSectionEndpointID = 26 // MPLS-TP Section Endpoint Identifier
AddrFamilyMPLSTPLSPEndpointID = 27 // MPLS-TP LSP Endpoint Identifier
AddrFamilyMPLSTPPseudowireEndpointID = 28 // MPLS-TP Pseudowire Endpoint Identifier
AddrFamilyMTIPv4 = 29 // MT IP: Multi-Topology IP version 4
AddrFamilyMTIPv6 = 30 // MT IPv6: Multi-Topology IP version 6
AddrFamilyEIGRPCommonServiceFamily = 16384 // EIGRP Common Service Family
AddrFamilyEIGRPIPv4ServiceFamily = 16385 // EIGRP IPv4 Service Family
AddrFamilyEIGRPIPv6ServiceFamily = 16386 // EIGRP IPv6 Service Family
AddrFamilyLISPCanonicalAddressFormat = 16387 // LISP Canonical Address Format (LCAF)
AddrFamilyBGPLS = 16388 // BGP-LS
AddrFamily48bitMAC = 16389 // 48-bit MAC
AddrFamily64bitMAC = 16390 // 64-bit MAC
AddrFamilyOUI = 16391 // OUI
AddrFamilyMACFinal24bits = 16392 // MAC/24
AddrFamilyMACFinal40bits = 16393 // MAC/40
AddrFamilyIPv6Initial64bits = 16394 // IPv6/64
AddrFamilyRBridgePortID = 16395 // RBridge Port ID
AddrFamilyTRILLNickname = 16396 // TRILL Nickname
)

View File

@ -28,23 +28,27 @@ var registries = []struct {
parse func(io.Writer, io.Reader) error
}{
{
"http://www.iana.org/assignments/dscp-registry/dscp-registry.xml",
"https://www.iana.org/assignments/dscp-registry/dscp-registry.xml",
parseDSCPRegistry,
},
{
"http://www.iana.org/assignments/ipv4-tos-byte/ipv4-tos-byte.xml",
"https://www.iana.org/assignments/ipv4-tos-byte/ipv4-tos-byte.xml",
parseTOSTCByte,
},
{
"http://www.iana.org/assignments/protocol-numbers/protocol-numbers.xml",
"https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xml",
parseProtocolNumbers,
},
{
"http://www.iana.org/assignments/address-family-numbers/address-family-numbers.xml",
parseAddrFamilyNumbers,
},
}
func main() {
var bb bytes.Buffer
fmt.Fprintf(&bb, "// go generate gen.go\n")
fmt.Fprintf(&bb, "// GENERATED BY THE COMMAND ABOVE; DO NOT EDIT\n\n")
fmt.Fprintf(&bb, "// Code generated by the command above; DO NOT EDIT.\n\n")
fmt.Fprintf(&bb, "// Package iana provides protocol number resources managed by the Internet Assigned Numbers Authority (IANA).\n")
fmt.Fprintf(&bb, `package iana // import "golang.org/x/net/internal/iana"`+"\n\n")
for _, r := range registries {
@ -291,3 +295,93 @@ func (pn *protocolNumbers) escape() []canonProtocolRecord {
}
return prs
}
func parseAddrFamilyNumbers(w io.Writer, r io.Reader) error {
dec := xml.NewDecoder(r)
var afn addrFamilylNumbers
if err := dec.Decode(&afn); err != nil {
return err
}
afrs := afn.escape()
fmt.Fprintf(w, "// %s, Updated: %s\n", afn.Title, afn.Updated)
fmt.Fprintf(w, "const (\n")
for _, afr := range afrs {
if afr.Name == "" {
continue
}
fmt.Fprintf(w, "AddrFamily%s = %d", afr.Name, afr.Value)
fmt.Fprintf(w, "// %s\n", afr.Descr)
}
fmt.Fprintf(w, ")\n")
return nil
}
type addrFamilylNumbers struct {
XMLName xml.Name `xml:"registry"`
Title string `xml:"title"`
Updated string `xml:"updated"`
RegTitle string `xml:"registry>title"`
Note string `xml:"registry>note"`
Records []struct {
Value string `xml:"value"`
Descr string `xml:"description"`
} `xml:"registry>record"`
}
type canonAddrFamilyRecord struct {
Name string
Descr string
Value int
}
func (afn *addrFamilylNumbers) escape() []canonAddrFamilyRecord {
afrs := make([]canonAddrFamilyRecord, len(afn.Records))
sr := strings.NewReplacer(
"IP version 4", "IPv4",
"IP version 6", "IPv6",
"Identifier", "ID",
"-", "",
"-", "",
"/", "",
".", "",
" ", "",
)
for i, afr := range afn.Records {
if strings.Contains(afr.Descr, "Unassigned") ||
strings.Contains(afr.Descr, "Reserved") {
continue
}
afrs[i].Descr = afr.Descr
s := strings.TrimSpace(afr.Descr)
switch s {
case "IP (IP version 4)":
afrs[i].Name = "IPv4"
case "IP6 (IP version 6)":
afrs[i].Name = "IPv6"
case "AFI for L2VPN information":
afrs[i].Name = "L2VPN"
case "E.164 with NSAP format subaddress":
afrs[i].Name = "E164withSubaddress"
case "MT IP: Multi-Topology IP version 4":
afrs[i].Name = "MTIPv4"
case "MAC/24":
afrs[i].Name = "MACFinal24bits"
case "MAC/40":
afrs[i].Name = "MACFinal40bits"
case "IPv6/64":
afrs[i].Name = "IPv6Initial64bits"
default:
n := strings.Index(s, "(")
if n > 0 {
s = s[:n]
}
n = strings.Index(s, ":")
if n > 0 {
s = s[:n]
}
afrs[i].Name = sr.Replace(s)
}
afrs[i].Value, _ = strconv.Atoi(afr.Value)
}
return afrs
}

View File

@ -26,6 +26,11 @@ type msghdr struct {
Flags int32
}
type mmsghdr struct {
Hdr msghdr
Len uint32
}
type cmsghdr struct {
Len uint32
Level int32
@ -52,6 +57,7 @@ type sockaddrInet6 struct {
const (
sizeofIovec = 0x8
sizeofMsghdr = 0x1c
sizeofMmsghdr = 0x20
sizeofCmsghdr = 0xc
sizeofSockaddrInet = 0x10

View File

@ -72,7 +72,7 @@ var registries = []struct {
parse func(io.Writer, io.Reader) error
}{
{
"http://www.iana.org/assignments/icmp-parameters/icmp-parameters.xml",
"https://www.iana.org/assignments/icmp-parameters/icmp-parameters.xml",
parseICMPv4Parameters,
},
}
@ -80,7 +80,7 @@ var registries = []struct {
func geniana() error {
var bb bytes.Buffer
fmt.Fprintf(&bb, "// go generate gen.go\n")
fmt.Fprintf(&bb, "// GENERATED BY THE COMMAND ABOVE; DO NOT EDIT\n\n")
fmt.Fprintf(&bb, "// Code generated by the command above; DO NOT EDIT.\n\n")
fmt.Fprintf(&bb, "package ipv4\n\n")
for _, r := range registries {
resp, err := http.Get(r.url)

10
vendor/golang.org/x/net/ipv4/iana.go generated vendored
View File

@ -1,9 +1,9 @@
// go generate gen.go
// GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
// Code generated by the command above; DO NOT EDIT.
package ipv4
// Internet Control Message Protocol (ICMP) Parameters, Updated: 2013-04-19
// Internet Control Message Protocol (ICMP) Parameters, Updated: 2018-02-26
const (
ICMPTypeEchoReply ICMPType = 0 // Echo Reply
ICMPTypeDestinationUnreachable ICMPType = 3 // Destination Unreachable
@ -16,9 +16,11 @@ const (
ICMPTypeTimestamp ICMPType = 13 // Timestamp
ICMPTypeTimestampReply ICMPType = 14 // Timestamp Reply
ICMPTypePhoturis ICMPType = 40 // Photuris
ICMPTypeExtendedEchoRequest ICMPType = 42 // Extended Echo Request
ICMPTypeExtendedEchoReply ICMPType = 43 // Extended Echo Reply
)
// Internet Control Message Protocol (ICMP) Parameters, Updated: 2013-04-19
// Internet Control Message Protocol (ICMP) Parameters, Updated: 2018-02-26
var icmpTypes = map[ICMPType]string{
0: "echo reply",
3: "destination unreachable",
@ -31,4 +33,6 @@ var icmpTypes = map[ICMPType]string{
13: "timestamp",
14: "timestamp reply",
40: "photuris",
42: "extended echo request",
43: "extended echo reply",
}

View File

@ -72,7 +72,7 @@ var registries = []struct {
parse func(io.Writer, io.Reader) error
}{
{
"http://www.iana.org/assignments/icmpv6-parameters/icmpv6-parameters.xml",
"https://www.iana.org/assignments/icmpv6-parameters/icmpv6-parameters.xml",
parseICMPv6Parameters,
},
}
@ -80,7 +80,7 @@ var registries = []struct {
func geniana() error {
var bb bytes.Buffer
fmt.Fprintf(&bb, "// go generate gen.go\n")
fmt.Fprintf(&bb, "// GENERATED BY THE COMMAND ABOVE; DO NOT EDIT\n\n")
fmt.Fprintf(&bb, "// Code generated by the command above; DO NOT EDIT.\n\n")
fmt.Fprintf(&bb, "package ipv6\n\n")
for _, r := range registries {
resp, err := http.Get(r.url)

10
vendor/golang.org/x/net/ipv6/iana.go generated vendored
View File

@ -1,9 +1,9 @@
// go generate gen.go
// GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
// Code generated by the command above; DO NOT EDIT.
package ipv6
// Internet Control Message Protocol version 6 (ICMPv6) Parameters, Updated: 2015-07-07
// Internet Control Message Protocol version 6 (ICMPv6) Parameters, Updated: 2018-03-09
const (
ICMPTypeDestinationUnreachable ICMPType = 1 // Destination Unreachable
ICMPTypePacketTooBig ICMPType = 2 // Packet Too Big
@ -40,9 +40,11 @@ const (
ICMPTypeDuplicateAddressRequest ICMPType = 157 // Duplicate Address Request
ICMPTypeDuplicateAddressConfirmation ICMPType = 158 // Duplicate Address Confirmation
ICMPTypeMPLControl ICMPType = 159 // MPL Control Message
ICMPTypeExtendedEchoRequest ICMPType = 160 // Extended Echo Request
ICMPTypeExtendedEchoReply ICMPType = 161 // Extended Echo Reply
)
// Internet Control Message Protocol version 6 (ICMPv6) Parameters, Updated: 2015-07-07
// Internet Control Message Protocol version 6 (ICMPv6) Parameters, Updated: 2018-03-09
var icmpTypes = map[ICMPType]string{
1: "destination unreachable",
2: "packet too big",
@ -79,4 +81,6 @@ var icmpTypes = map[ICMPType]string{
157: "duplicate address request",
158: "duplicate address confirmation",
159: "mpl control message",
160: "extended echo request",
161: "extended echo reply",
}

File diff suppressed because it is too large Load Diff

View File

@ -302,32 +302,78 @@ var rules = [...]string{
"bo",
"com.bo",
"edu.bo",
"gov.bo",
"gob.bo",
"int.bo",
"org.bo",
"net.bo",
"mil.bo",
"tv.bo",
"web.bo",
"academia.bo",
"agro.bo",
"arte.bo",
"blog.bo",
"bolivia.bo",
"ciencia.bo",
"cooperativa.bo",
"democracia.bo",
"deporte.bo",
"ecologia.bo",
"economia.bo",
"empresa.bo",
"indigena.bo",
"industria.bo",
"info.bo",
"medicina.bo",
"movimiento.bo",
"musica.bo",
"natural.bo",
"nombre.bo",
"noticias.bo",
"patria.bo",
"politica.bo",
"profesional.bo",
"plurinacional.bo",
"pueblo.bo",
"revista.bo",
"salud.bo",
"tecnologia.bo",
"tksat.bo",
"transporte.bo",
"wiki.bo",
"br",
"9guacu.br",
"abc.br",
"adm.br",
"adv.br",
"agr.br",
"aju.br",
"am.br",
"anani.br",
"aparecida.br",
"arq.br",
"art.br",
"ato.br",
"b.br",
"belem.br",
"bhz.br",
"bio.br",
"blog.br",
"bmd.br",
"boavista.br",
"bsb.br",
"campinagrande.br",
"campinas.br",
"caxias.br",
"cim.br",
"cng.br",
"cnt.br",
"com.br",
"contagem.br",
"coop.br",
"cri.br",
"cuiaba.br",
"curitiba.br",
"def.br",
"ecn.br",
"eco.br",
@ -338,14 +384,18 @@ var rules = [...]string{
"etc.br",
"eti.br",
"far.br",
"feira.br",
"flog.br",
"floripa.br",
"fm.br",
"fnd.br",
"fortal.br",
"fot.br",
"foz.br",
"fst.br",
"g12.br",
"ggf.br",
"goiania.br",
"gov.br",
"ac.gov.br",
"al.gov.br",
@ -374,42 +424,72 @@ var rules = [...]string{
"se.gov.br",
"sp.gov.br",
"to.gov.br",
"gru.br",
"imb.br",
"ind.br",
"inf.br",
"jab.br",
"jampa.br",
"jdf.br",
"joinville.br",
"jor.br",
"jus.br",
"leg.br",
"lel.br",
"londrina.br",
"macapa.br",
"maceio.br",
"manaus.br",
"maringa.br",
"mat.br",
"med.br",
"mil.br",
"morena.br",
"mp.br",
"mus.br",
"natal.br",
"net.br",
"niteroi.br",
"*.nom.br",
"not.br",
"ntr.br",
"odo.br",
"org.br",
"osasco.br",
"palmas.br",
"poa.br",
"ppg.br",
"pro.br",
"psc.br",
"psi.br",
"pvh.br",
"qsl.br",
"radio.br",
"rec.br",
"recife.br",
"ribeirao.br",
"rio.br",
"riobranco.br",
"riopreto.br",
"salvador.br",
"sampa.br",
"santamaria.br",
"santoandre.br",
"saobernardo.br",
"saogonca.br",
"sjc.br",
"slg.br",
"slz.br",
"sorocaba.br",
"srv.br",
"taxi.br",
"teo.br",
"the.br",
"tmp.br",
"trd.br",
"tur.br",
"tv.br",
"udi.br",
"vet.br",
"vix.br",
"vlog.br",
@ -3114,7 +3194,16 @@ var rules = [...]string{
"uenohara.yamanashi.jp",
"yamanakako.yamanashi.jp",
"yamanashi.yamanashi.jp",
"*.ke",
"ke",
"ac.ke",
"co.ke",
"go.ke",
"info.ke",
"me.ke",
"mobi.ke",
"ne.ke",
"or.ke",
"sc.ke",
"kg",
"org.kg",
"net.kg",
@ -6168,7 +6257,6 @@ var rules = [...]string{
"chat",
"cheap",
"chintai",
"chloe",
"christmas",
"chrome",
"chrysler",
@ -6459,7 +6547,6 @@ var rules = [...]string{
"house",
"how",
"hsbc",
"htc",
"hughes",
"hyatt",
"hyundai",
@ -6611,8 +6698,6 @@ var rules = [...]string{
"maserati",
"mattel",
"mba",
"mcd",
"mcdonalds",
"mckinsey",
"med",
"media",
@ -6643,7 +6728,6 @@ var rules = [...]string{
"monash",
"money",
"monster",
"montblanc",
"mopar",
"mormon",
"mortgage",
@ -6721,7 +6805,6 @@ var rules = [...]string{
"ott",
"ovh",
"page",
"pamperedchef",
"panasonic",
"panerai",
"paris",
@ -7195,10 +7278,13 @@ var rules = [...]string{
"cc.ua",
"inf.ua",
"ltd.ua",
"1password.ca",
"1password.com",
"1password.eu",
"beep.pl",
"*.compute.estate",
"*.alces.network",
"*.alwaysdata.net",
"alwaysdata.net",
"cloudfront.net",
"*.compute.amazonaws.com",
"*.compute-1.amazonaws.com",
@ -7215,6 +7301,7 @@ var rules = [...]string{
"eu-central-1.elasticbeanstalk.com",
"eu-west-1.elasticbeanstalk.com",
"eu-west-2.elasticbeanstalk.com",
"eu-west-3.elasticbeanstalk.com",
"sa-east-1.elasticbeanstalk.com",
"us-east-1.elasticbeanstalk.com",
"us-east-2.elasticbeanstalk.com",
@ -7233,6 +7320,7 @@ var rules = [...]string{
"s3-eu-central-1.amazonaws.com",
"s3-eu-west-1.amazonaws.com",
"s3-eu-west-2.amazonaws.com",
"s3-eu-west-3.amazonaws.com",
"s3-external-1.amazonaws.com",
"s3-fips-us-gov-west-1.amazonaws.com",
"s3-sa-east-1.amazonaws.com",
@ -7246,6 +7334,7 @@ var rules = [...]string{
"s3.ca-central-1.amazonaws.com",
"s3.eu-central-1.amazonaws.com",
"s3.eu-west-2.amazonaws.com",
"s3.eu-west-3.amazonaws.com",
"s3.us-east-2.amazonaws.com",
"s3.dualstack.ap-northeast-1.amazonaws.com",
"s3.dualstack.ap-northeast-2.amazonaws.com",
@ -7256,6 +7345,7 @@ var rules = [...]string{
"s3.dualstack.eu-central-1.amazonaws.com",
"s3.dualstack.eu-west-1.amazonaws.com",
"s3.dualstack.eu-west-2.amazonaws.com",
"s3.dualstack.eu-west-3.amazonaws.com",
"s3.dualstack.sa-east-1.amazonaws.com",
"s3.dualstack.us-east-1.amazonaws.com",
"s3.dualstack.us-east-2.amazonaws.com",
@ -7272,6 +7362,7 @@ var rules = [...]string{
"s3-website.ca-central-1.amazonaws.com",
"s3-website.eu-central-1.amazonaws.com",
"s3-website.eu-west-2.amazonaws.com",
"s3-website.eu-west-3.amazonaws.com",
"s3-website.us-east-2.amazonaws.com",
"t3l3p0rt.net",
"tele.amune.org",
@ -7363,6 +7454,8 @@ var rules = [...]string{
"cloudns.us",
"co.nl",
"co.no",
"webhosting.be",
"hosting-cluster.nl",
"dyn.cosidns.de",
"dynamisches-dns.de",
"dnsupdater.de",
@ -7863,6 +7956,8 @@ var rules = [...]string{
"fedorainfracloud.org",
"fedorapeople.org",
"cloud.fedoraproject.org",
"app.os.fedoraproject.org",
"app.os.stg.fedoraproject.org",
"filegear.me",
"firebaseapp.com",
"flynnhub.com",
@ -7873,7 +7968,6 @@ var rules = [...]string{
"fbxos.fr",
"freebox-os.fr",
"freeboxos.fr",
"myfusion.cloud",
"*.futurecms.at",
"futurehosting.at",
"futuremailing.at",
@ -8049,6 +8143,7 @@ var rules = [...]string{
"netlify.com",
"4u.com",
"ngrok.io",
"nh-serv.co.uk",
"nfshost.com",
"nsupdate.info",
"nerdpol.ovh",
@ -8214,6 +8309,8 @@ var rules = [...]string{
"rackmaze.com",
"rackmaze.net",
"rhcloud.com",
"resindevice.io",
"devices.resinstaging.io",
"hzc.io",
"wellbeingzone.eu",
"ptplus.fit",
@ -8221,6 +8318,7 @@ var rules = [...]string{
"sandcats.io",
"logoip.de",
"logoip.com",
"scrysec.com",
"firewall-gateway.com",
"firewall-gateway.de",
"my-gateway.de",
@ -8231,6 +8329,7 @@ var rules = [...]string{
"my-firewall.org",
"myfirewall.org",
"spdns.org",
"*.s5y.io",
"*.sensiosite.cloud",
"biz.ua",
"co.ua",
@ -8591,7 +8690,6 @@ var nodeLabels = [...]string{
"chat",
"cheap",
"chintai",
"chloe",
"christmas",
"chrome",
"chrysler",
@ -8942,7 +9040,6 @@ var nodeLabels = [...]string{
"hr",
"hsbc",
"ht",
"htc",
"hu",
"hughes",
"hyatt",
@ -9136,8 +9233,6 @@ var nodeLabels = [...]string{
"mattel",
"mba",
"mc",
"mcd",
"mcdonalds",
"mckinsey",
"md",
"me",
@ -9179,7 +9274,6 @@ var nodeLabels = [...]string{
"monash",
"money",
"monster",
"montblanc",
"mopar",
"mormon",
"mortgage",
@ -9287,7 +9381,6 @@ var nodeLabels = [...]string{
"ovh",
"pa",
"page",
"pamperedchef",
"panasonic",
"panerai",
"paris",
@ -10138,6 +10231,7 @@ var nodeLabels = [...]string{
"ac",
"blogspot",
"transurl",
"webhosting",
"gov",
"0",
"1",
@ -10208,33 +10302,79 @@ var nodeLabels = [...]string{
"gov",
"net",
"org",
"academia",
"agro",
"arte",
"blog",
"bolivia",
"ciencia",
"com",
"cooperativa",
"democracia",
"deporte",
"ecologia",
"economia",
"edu",
"empresa",
"gob",
"gov",
"indigena",
"industria",
"info",
"int",
"medicina",
"mil",
"movimiento",
"musica",
"natural",
"net",
"nombre",
"noticias",
"org",
"patria",
"plurinacional",
"politica",
"profesional",
"pueblo",
"revista",
"salud",
"tecnologia",
"tksat",
"transporte",
"tv",
"web",
"wiki",
"9guacu",
"abc",
"adm",
"adv",
"agr",
"aju",
"am",
"anani",
"aparecida",
"arq",
"art",
"ato",
"b",
"belem",
"bhz",
"bio",
"blog",
"bmd",
"boavista",
"bsb",
"campinagrande",
"campinas",
"caxias",
"cim",
"cng",
"cnt",
"com",
"contagem",
"coop",
"cri",
"cuiaba",
"curitiba",
"def",
"ecn",
"eco",
@ -10245,51 +10385,85 @@ var nodeLabels = [...]string{
"etc",
"eti",
"far",
"feira",
"flog",
"floripa",
"fm",
"fnd",
"fortal",
"fot",
"foz",
"fst",
"g12",
"ggf",
"goiania",
"gov",
"gru",
"imb",
"ind",
"inf",
"jab",
"jampa",
"jdf",
"joinville",
"jor",
"jus",
"leg",
"lel",
"londrina",
"macapa",
"maceio",
"manaus",
"maringa",
"mat",
"med",
"mil",
"morena",
"mp",
"mus",
"natal",
"net",
"niteroi",
"nom",
"not",
"ntr",
"odo",
"org",
"osasco",
"palmas",
"poa",
"ppg",
"pro",
"psc",
"psi",
"pvh",
"qsl",
"radio",
"rec",
"recife",
"ribeirao",
"rio",
"riobranco",
"riopreto",
"salvador",
"sampa",
"santamaria",
"santoandre",
"saobernardo",
"saogonca",
"sjc",
"slg",
"slz",
"sorocaba",
"srv",
"taxi",
"teo",
"the",
"tmp",
"trd",
"tur",
"tv",
"udi",
"vet",
"vix",
"vlog",
@ -10376,6 +10550,7 @@ var nodeLabels = [...]string{
"nym",
"org",
"za",
"1password",
"ab",
"awdev",
"bc",
@ -10434,7 +10609,6 @@ var nodeLabels = [...]string{
"mil",
"nom",
"magentosite",
"myfusion",
"sensiosite",
"statics",
"trafficplex",
@ -10512,6 +10686,7 @@ var nodeLabels = [...]string{
"blogspot",
"0emm",
"1kapp",
"1password",
"3utilities",
"4u",
"africa",
@ -10759,6 +10934,7 @@ var nodeLabels = [...]string{
"ru",
"sa",
"saves-the-whales",
"scrysec",
"se",
"securitytactics",
"selfip",
@ -10812,6 +10988,7 @@ var nodeLabels = [...]string{
"eu-central-1",
"eu-west-1",
"eu-west-2",
"eu-west-3",
"s3",
"s3-ap-northeast-1",
"s3-ap-northeast-2",
@ -10822,6 +10999,7 @@ var nodeLabels = [...]string{
"s3-eu-central-1",
"s3-eu-west-1",
"s3-eu-west-2",
"s3-eu-west-3",
"s3-external-1",
"s3-fips-us-gov-west-1",
"s3-sa-east-1",
@ -10870,6 +11048,10 @@ var nodeLabels = [...]string{
"s3",
"dualstack",
"s3",
"s3-website",
"s3",
"dualstack",
"s3",
"dualstack",
"s3",
"dualstack",
@ -10887,6 +11069,7 @@ var nodeLabels = [...]string{
"eu-central-1",
"eu-west-1",
"eu-west-2",
"eu-west-3",
"sa-east-1",
"us-east-1",
"us-east-2",
@ -11077,6 +11260,7 @@ var nodeLabels = [...]string{
"name",
"net",
"org",
"1password",
"barsy",
"cloudns",
"diskstation",
@ -11360,6 +11544,9 @@ var nodeLabels = [...]string{
"nodum",
"pantheonsite",
"protonet",
"resindevice",
"resinstaging",
"s5y",
"sandcats",
"shiftedit",
"spacekit",
@ -11370,6 +11557,7 @@ var nodeLabels = [...]string{
"customer",
"apps",
"stage",
"devices",
"dev",
"disrec",
"prod",
@ -13572,7 +13760,15 @@ var nodeLabels = [...]string{
"yamanakako",
"yamanashi",
"city",
"ac",
"co",
"go",
"info",
"me",
"mobi",
"ne",
"or",
"sc",
"blogspot",
"com",
"edu",
@ -14590,6 +14786,7 @@ var nodeLabels = [...]string{
"cistron",
"co",
"demon",
"hosting-cluster",
"transurl",
"virtueeldomein",
"aa",
@ -15560,6 +15757,11 @@ var nodeLabels = [...]string{
"uk",
"us",
"cloud",
"os",
"stg",
"app",
"os",
"app",
"nerdpol",
"abo",
"ac",
@ -16393,6 +16595,7 @@ var nodeLabels = [...]string{
"police",
"sch",
"blogspot",
"nh-serv",
"no-ip",
"wellbeingzone",
"homeoffice",

View File

@ -20,7 +20,7 @@ func sysctl(mib []int32, old *byte, oldlen *uintptr, new *byte, newlen uintptr)
} else {
p = unsafe.Pointer(&zero)
}
_, _, errno := syscall.Syscall6(syscall.SYS___SYSCTL, uintptr(p), uintptr(len(mib)), uintptr(unsafe.Pointer(old)), uintptr(unsafe.Pointer(oldlen)), uintptr(unsafe.Pointer(new)), uintptr(newlen))
_, _, errno := syscall.Syscall6(syscall.SYS___SYSCTL, uintptr(p), uintptr(len(mib)), uintptr(unsafe.Pointer(old)), uintptr(unsafe.Pointer(oldlen)), uintptr(unsafe.Pointer(new)), newlen)
if errno != 0 {
return error(errno)
}

View File

@ -368,7 +368,11 @@ func New(family, title string) Trace {
}
func (tr *trace) Finish() {
tr.Elapsed = time.Now().Sub(tr.Start)
elapsed := time.Now().Sub(tr.Start)
tr.mu.Lock()
tr.Elapsed = elapsed
tr.mu.Unlock()
if DebugUseAfterFinish {
buf := make([]byte, 4<<10) // 4 KB should be enough
n := runtime.Stack(buf, false)
@ -381,14 +385,17 @@ func (tr *trace) Finish() {
m.Remove(tr)
f := getFamily(tr.Family, true)
tr.mu.RLock() // protects tr fields in Cond.match calls
for _, b := range f.Buckets {
if b.Cond.match(tr) {
b.Add(tr)
}
}
tr.mu.RUnlock()
// Add a sample of elapsed time as microseconds to the family's timeseries
h := new(histogram)
h.addMeasurement(tr.Elapsed.Nanoseconds() / 1e3)
h.addMeasurement(elapsed.Nanoseconds() / 1e3)
f.LatencyMu.Lock()
f.Latency.Add(h)
f.LatencyMu.Unlock()
@ -684,25 +691,20 @@ type trace struct {
// Title is the title of this trace.
Title string
// Timing information.
Start time.Time
Elapsed time.Duration // zero while active
// Start time of the this trace.
Start time.Time
// Trace information if non-zero.
traceID uint64
spanID uint64
// Whether this trace resulted in an error.
IsError bool
// Append-only sequence of events (modulo discards).
mu sync.RWMutex
events []event
events []event // Append-only sequence of events (modulo discards).
maxEvents int
recycler func(interface{})
IsError bool // Whether this trace resulted in an error.
Elapsed time.Duration // Elapsed time for this trace, zero while active.
traceID uint64 // Trace information if non-zero.
spanID uint64
refs int32 // how many buckets this is in
recycler func(interface{})
disc discarded // scratch space to avoid allocation
refs int32 // how many buckets this is in
disc discarded // scratch space to avoid allocation
finishStack []byte // where finish was called, if DebugUseAfterFinish is set
@ -714,14 +716,18 @@ func (tr *trace) reset() {
tr.Family = ""
tr.Title = ""
tr.Start = time.Time{}
tr.mu.Lock()
tr.Elapsed = 0
tr.traceID = 0
tr.spanID = 0
tr.IsError = false
tr.maxEvents = 0
tr.events = nil
tr.refs = 0
tr.recycler = nil
tr.mu.Unlock()
tr.refs = 0
tr.disc = 0
tr.finishStack = nil
for i := range tr.eventsBuf {
@ -801,21 +807,31 @@ func (tr *trace) LazyPrintf(format string, a ...interface{}) {
tr.addEvent(&lazySprintf{format, a}, false, false)
}
func (tr *trace) SetError() { tr.IsError = true }
func (tr *trace) SetError() {
tr.mu.Lock()
tr.IsError = true
tr.mu.Unlock()
}
func (tr *trace) SetRecycler(f func(interface{})) {
tr.mu.Lock()
tr.recycler = f
tr.mu.Unlock()
}
func (tr *trace) SetTraceInfo(traceID, spanID uint64) {
tr.mu.Lock()
tr.traceID, tr.spanID = traceID, spanID
tr.mu.Unlock()
}
func (tr *trace) SetMaxEvents(m int) {
tr.mu.Lock()
// Always keep at least three events: first, discarded count, last.
if len(tr.events) == 0 && m > 3 {
tr.maxEvents = m
}
tr.mu.Unlock()
}
func (tr *trace) ref() {
@ -824,6 +840,7 @@ func (tr *trace) ref() {
func (tr *trace) unref() {
if atomic.AddInt32(&tr.refs, -1) == 0 {
tr.mu.RLock()
if tr.recycler != nil {
// freeTrace clears tr, so we hold tr.recycler and tr.events here.
go func(f func(interface{}), es []event) {
@ -834,6 +851,7 @@ func (tr *trace) unref() {
}
}(tr.recycler, tr.events)
}
tr.mu.RUnlock()
freeTrace(tr)
}
@ -844,7 +862,10 @@ func (tr *trace) When() string {
}
func (tr *trace) ElapsedTime() string {
tr.mu.RLock()
t := tr.Elapsed
tr.mu.RUnlock()
if t == 0 {
// Active trace.
t = time.Since(tr.Start)